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What else could it be?
im at wits end now, since August my modem has been rebooting randomly and i have found out reciently a few others locally have the same problem....
I have 2 engineers here after Secondline support said that its a problem with high power on upstream as it spikes at 59dBmv and all they claimed they can do is "Change my modem" and ive had 3 modems now since November of last year. Now second line support are saying they cant see any problems on my UBR or network they asked the local network team to check it out and they are also saying they cant find any problems yet its STILL happening, here are some of the logs.... As i said there are other locals ive spoken to having the same issue. > Wed Sep 30 15:32:05 2009 Wed Sep 30 15:32:05 2009 Information (7) MAP > w/initial maintenance region received > Wed Sep 30 15:32:03 2009 Wed Sep 30 15:32:03 2009 Critical (3) No > Ranging Response received - T3 time-out > Wed Sep 30 15:32:03 2009 Wed Sep 30 15:32:03 2009 Information (7) MAP > w/initial maintenance region received > Wed Sep 30 15:32:03 2009 Wed Sep 30 15:32:03 2009 Information (7) > snip < > > Wed Sep 30 15:31:10 2009 Wed Sep 30 15:31:10 2009 Information (7) > starting ds time sync acquisition... > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) Locked > on the downstream. Waiting for UCDs... > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) > Downstream lock ok > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) > Downstream sync failed > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) > Downstream sync ok > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) Sync > Start > Wed Sep 30 15:31:09 2009 Wed Sep 30 15:31:09 2009 Information (7) > Downstream sync failed Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) The s/w filename specified in the config file is the same as ... Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) A software upgrade filename was specified in the config file. Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) Authorized Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) Registration complete! Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) We registered with a DOCSIS 1.1 config file! Sun Oct 04 00:44:56 2009 Sun Oct 04 00:44:56 2009 Information (7) Received a REG-RSP message from the CMTS... Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Information (7) Sending a REG-REQ to the CMTS... Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Information (7) CableModem SNMP configure complete Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Information (7) IP init completed ok Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Information (7) CableModem TFTP init ok Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Information (7) CableModem DHCP client init ok Sun Oct 04 00:44:55 2009 Sun Oct 04 00:44:55 2009 Critical (3) DHCP WARNING - Non-critical field invalid in response. Time Not Established Time Not Established Information (7) MAP w/initial maintenance region received Time Not Established Time Not Established Information (7) Downstream sync ok Time Not Established Time Not Established Information (7) Beginning initial ranging... Time Not Established Time Not Established Information (7) downstream time sync acquired... Time Not Established Time Not Established Information (7) Downstream sync ok Time Not Established Time Not Established Information (7) starting ds time sync acquisition... Time Not Established Time Not Established Information (7) Locked on the downstream. Waiting for UCDs... Time Not Established Time Not Established Information (7) Downstream lock ok Time Not Established Time Not Established Information (7) Sync Start Sun Oct 04 00:43:52 2009 Sun Oct 04 00:43:52 2009 Critical (3) No Maintenance Broadcasts for Ranging opportunities received ... Sun Oct 04 00:43:39 2009 Sun Oct 04 00:43:39 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Sun Oct 04 00:43:39 2009 Sun Oct 04 00:43:39 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:43:35 2009 Sun Oct 04 00:43:35 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:43:35 2009 Sun Oct 04 00:43:35 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:43:31 2009 Sun Oct 04 00:43:31 2009 Critical (3) DHCP WARNING - Non-critical field invalid in response. Sun Oct 04 00:43:16 2009 Sun Oct 04 00:43:16 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:43:15 2009 Sun Oct 04 00:43:15 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:43:10 2009 Sun Oct 04 00:43:10 2009 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q... Sun Oct 04 00:43:09 2009 Sun Oct 04 00:43:09 2009 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f... Sun Oct 04 00:43:06 2009 Sun Oct 04 00:43:06 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Sun Oct 04 00:55:14 2009 Sun Oct 04 00:55:14 2009 Information (7) The s/w filename specified in the config file is the same as ... Sun Oct 04 00:55:14 2009 Sun Oct 04 00:55:14 2009 Information (7) A software upgrade filename was specified in the config file. Sun Oct 04 00:55:14 2009 Sun Oct 04 00:55:14 2009 Information (7) Authorized Sun Oct 04 00:55:13 2009 Sun Oct 04 00:55:13 2009 Information (7) Registration complete! Sun Oct 04 00:55:13 2009 Sun Oct 04 00:55:13 2009 Information (7) We registered with a DOCSIS 1.1 config file! Sun Oct 04 00:55:13 2009 Sun Oct 04 00:55:13 2009 Information (7) Received a REG-RSP message from the CMTS... Sun Oct 04 00:55:13 2009 Sun Oct 04 00:55:13 2009 Information (7) Sending a REG-REQ to the CMTS... Sun Oct 04 00:55:13 2009 Sun Oct 04 00:55:13 2009 Information (7) CableModem SNMP configure complete Time Not Established Time Not Established Information (7) IP init completed ok Time Not Established Time Not Established Information (7) CableModem TFTP init ok Time Not Established Time Not Established Error (4) ToD request sent- No Response received Time Not Established Time Not Established Information (7) CableModem DHCP client init ok Time Not Established Time Not Established Critical (3) DHCP WARNING - Non-critical field invalid in response. Time Not Established Time Not Established Information (7) MAP w/initial maintenance region received Time Not Established Time Not Established Information (7) Downstream sync ok Time Not Established Time Not Established Information (7) Beginning initial ranging... Time Not Established Time Not Established Information (7) downstream time sync acquired... Time Not Established Time Not Established Information (7) Downstream sync ok Time Not Established Time Not Established Information (7) starting ds time sync acquisition... Time Not Established Time Not Established Information (7) Locked on the downstream. Waiting for UCDs... Time Not Established Time Not Established Information (7) Downstream lock ok Time Not Established Time Not Established Information (7) Sync Start Sun Oct 04 00:54:18 2009 Sun Oct 04 00:54:18 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:54:15 2009 Sun Oct 04 00:54:15 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:54:10 2009 Sun Oct 04 00:54:10 2009 Critical (3) DHCP WARNING - Non-critical field invalid in response. Sun Oct 04 00:54:02 2009 Sun Oct 04 00:54:02 2009 Critical (3) No Ranging Response received - T3 time-out Sun Oct 04 00:53:57 2009 Sun Oct 04 00:53:57 2009 Critical (3) SYNC Timing Synchronization failure - Failed to acquire QAM/Q... Sun Oct 04 00:53:55 2009 Sun Oct 04 00:53:55 2009 Critical (3) SYNC Timing Synchronization failure - Failed to acquire FEC f... Sun Oct 04 00:53:54 2009 Sun Oct 04 00:53:54 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Sun Oct 04 00:53:51 2009 Sun Oct 04 00:53:51 2009 Critical (3) Received Response to Broadcast Maintenance Request, But no Un... Sun Oct 04 00:53:51 2009 Sun Oct 04 00:53:51 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Sun Oct 04 00:53:51 2009 Sun Oct 04 00:53:51 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync |
Re: What else could it be?
Perhaps the engineer arriving between 12pm and 4pm tomorrow will be able to advise further or escalate the issue to local networks. See what he has to say.
Given you've no additional information I'm not sure what anyone here can tell you that hasn't already been said. Power adjustments indicate amplifier issues usually. |
Re: What else could it be?
If i get another "All i can do is change the modem" im gonna kick him right where the sun dont shine!
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Re: What else could it be?
Yes, assaulting a technician will get it all fixed for you.
I'm getting lost now, I thought your power level and slow speed issues were occurring when you were on the old kit. Now you're on the new kit, you're getting random reboots but no power level or slow speed issues. You need to seperate the two sets of problems. |
Re: What else could it be?
basically i was having modem reboots cos of high power levels and they changed my modem which kicked me off the new kit onto the old kit, and not only did my reboots continue but it caused slow speeds due to port utilization. They then put me back on the new kit which solved that but im STILL! getting modem reboots due to what they say is high power upstream.
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Re: What else could it be?
So what is your upstream power now?
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Re: What else could it be?
atm its 51dBmv but according to second line support it spikes to around 59dBmv when the reboots occur.
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Re: What else could it be?
now im told that its a DHCP server error and 2 departments are having an argument because they claim my errors are "Not Possible"
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Re: What else could it be?
Expand please.
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Re: What else could it be?
well the engineer here rang a person who is part of the network team here in swansea who is a friend of his and is also on this site and i am in contact with myself and have been sending him my modem logs. He said that he has been passing the logs on further up the chain as its a DCHP server issue and the people further up the chain claim its impossible and they r stuck in a deadlock while im having to put up with a connection that has more ups and downs than Monica Lewinskis knickers!
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Re: What else could it be?
fancy posting a public IP you've had in the last couple of months so I can take a look
any idea what UBR your on? Just had a brain flash - post the MAC of your device plugged in behind the modem NOT YOUR MODEMS MAC ADDRESS and i can use that to check dhcp logs. That way I can look at you connection without compromising anything |
Re: What else could it be?
im on cpc2-cwma7-2-0-cust*.*-*.cable.virginmedia.com
i aint had a router plugged in for well over a week so that wont help. |
Re: What else could it be?
the mac address of the network card plugged into the modem then =)
go to run>cmd>ipconfig /all - look at the bottom of this ifno and your mac will be there. Don't worry, it won't allow anyone access to you machine or anything, itll just mean i can take a look at your connection |
Re: What else could it be?
u work for Virgin media?
Check out Page 2 for the info |
Re: What else could it be?
yup, im tech support
I actually haven't had much exposure to the new UBR's hence why im interested in this problem. Id like to know if their are problems with the new kit before it starts affecting the customers that I deal with =) |
Re: What else could it be?
00-02-06-5B-17-2B that is card Mac address
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Re: What else could it be?
just to confirm our on a 20 meg connection?
and could you please confirm how often the connection drops, and the last time you saw it drop. SNR on the interface is dropping now and again, which could cause your modem to need to re-sync, but I'd need to know if the two things tie in or not ---------- Post added at 16:51 ---------- Previous post was at 16:33 ---------- cwma-cmts-07:7A#show cable flap-list | i MAC ID CableIF Hit Miss Ins Pow Rng Flap Type Time XXXX.XXX.XXXX 5/0 U0 53513 607 5 6 44 55 Rng MON OCT 05 14:42:02 2009 Hi there, here are some stats from your modem - I've hidden the mac address for security reasons - You modem appears to be flapping / ranging a lot suggests either faulty modem or loose connection / damaged cabling / f connector etc - essentially it's likely to be a physical issue. Id get a tech out to check physical connections and swap modem, probably suggest he plug a modem in at the cab to decide if a re-pull is required. |
Re: What else could it be?
all the connections have been tested in the cabenet, 2 techs have been out, modem has been changed twice in past 3 months.
I really dont think a repull is an option to flats. |
Re: What else could it be?
hmmm, do you have any internal splitters or anything in the property? ie so you can have a digi TV and a modem
if so try screwing the modem into the feed of you DP , rather then off the splitter. They can cause noise on the line and this in turn can cause the modem to range to try and get a good lock on |
Re: What else could it be?
all i have is what Virgin fitted, theres only one splitter i know of and thats the one that splits in the connections for TV and Modem which is in a seperate room.
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Re: What else could it be?
Quote:
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Re: What else could it be?
Quote:
---------- Post added at 19:55 ---------- Previous post was at 19:54 ---------- Quote:
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Re: What else could it be?
Quote:
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Re: What else could it be?
Quote:
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Re: What else could it be?
Quote:
As I'm nice I'll clarify. Quote:
Exactly 3 things affect power levels - modem, CMTS and the optical and coaxial network in between. The end. Sorry to not be able to give further advice, but DHCP issues it most certainly is not. The issue is either very local to you or along the cable network somewhere, it's certainly nothing to do with a Solaris server with no awareness of the RF network. |
Re: What else could it be?
Quote:
Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) Downstream sync failed Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 10:39:57 2009 Mon Oct 05 10:39:57 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:56 2009 Mon Oct 05 10:39:56 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 10:39:56 2009 Mon Oct 05 10:39:56 2009 Information (7) Downstream sync failed Mon Oct 05 10:39:30 2009 Mon Oct 05 10:39:30 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:30 2009 Mon Oct 05 10:39:30 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 10:39:30 2009 Mon Oct 05 10:39:30 2009 Information (7) Downstream sync ok Mon Oct 05 10:39:29 2009 Mon Oct 05 10:39:29 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 10:39:29 2009 Mon Oct 05 10:39:29 2009 Information (7) Downstream sync failed Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) The s/w filename specified in the config file is the same as ... Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) A software upgrade filename was specified in the config file. Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) Authorized Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) Registration complete! Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) We registered with a DOCSIS 1.1 config file! Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) Received a REG-RSP message from the CMTS... Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) Sending a REG-REQ to the CMTS... Mon Oct 05 10:27:50 2009 Mon Oct 05 10:27:50 2009 Information (7) CableModem SNMP configure complete Mon Oct 05 10:27:49 2009 Mon Oct 05 10:27:49 2009 Information (7) IP init completed ok Mon Oct 05 10:27:49 2009 Mon Oct 05 10:27:49 2009 Information (7) CableModem TFTP init ok Mon Oct 05 10:27:49 2009 Mon Oct 05 10:27:49 2009 Information (7) CableModem DHCP client init ok Mon Oct 05 10:27:49 2009 Mon Oct 05 10:27:49 2009 Critical (3) DHCP WARNING - Non-critical field invalid in response. Time Not Established Time Not Established Information (7) MAP w/initial maintenance region received Time Not Established Time Not Established Information (7) Downstream sync ok Time Not Established Time Not Established Information (7) Beginning initial ranging... Time Not Established Time Not Established Information (7) downstream time sync acquired... Time Not Established Time Not Established Information (7) Downstream sync ok all i want is the problem fixed, theres only so much i can do, ive changed the splitter myself, they have tested the leads and power levels now and claim all is well, the cabinet has been tested, and they claim they CANT find a problem. While they r arguing amongst themselves what am i supposed to do with a connection that drops 7 times a day sometimes. |
Re: What else could it be?
Use another provider, simples.
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Re: What else could it be?
well my contract is up 3rd week in November so will be looking into another one soon.
---------- Post added at 22:13 ---------- Previous post was at 22:03 ---------- i just noticed something, everytime i download a file i get this scrolling over and over and over in my logs..... Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:45 2009 Mon Oct 05 21:10:45 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:44 2009 Mon Oct 05 21:10:44 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:43 2009 Mon Oct 05 21:10:43 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:43 2009 Mon Oct 05 21:10:43 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:33 2009 Mon Oct 05 21:10:33 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:32 2009 Mon Oct 05 21:10:32 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:32 2009 Mon Oct 05 21:10:32 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:31 2009 Mon Oct 05 21:10:31 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:31 2009 Mon Oct 05 21:10:31 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) locked and synced to rescue CMTS...all is well! Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Critical (3) SYNC Timing Synchronization failure - Loss of Sync Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync failed Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) Downstream sync ok Mon Oct 05 21:10:29 2009 Mon Oct 05 21:10:29 2009 Information (7) locked and synced to rescue CMTS...all is well! |
Re: What else could it be?
Yes, you are losing downstream lock and unable to re-establish it.
Upstream isn't your only problem :) |
Re: What else could it be?
its the cause and fix i want after 2 Bloody months!
i have sent out emails to a few others now in the building to see if anyone else is having a problem also. |
Re: What else could it be?
in responce to emails, no one else in the building are having the issues i am having.
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Re: What else could it be?
ive now been told.....
I've mailed the area service manager directly to request a joint appointment by his senior technician and one of the local network engineers to investigate this matter further. We've referred the issue up to our Network management centre who are unable to find any issues on the UBR so it must be the physical network. As soon as we have any reply we'll be back in touch. I have also informed head office, retensions and tech support that end of october is the cut off point. If its not fixed then then all my services will go elsewhere. |
Re: What else could it be?
https://www.cableforum.co.uk/images/...2009/10/63.png
And problems get worse and worse and worse Will be on stop soon! |
Re: What else could it be?
Well i think im actually getting somwhere....
The Senior tech and Local Engineer will be here at 1pm tomorrow. |
Re: What else could it be?
i vote re-pull =D
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Re: What else could it be?
no engineer has shown up!
Only now my connection has sprung back to life since midnight. |
Re: What else could it be?
are you sure the engineer didn't go out? he may have plugged you into a different tap port to resolve the problem
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Re: What else could it be?
Quote:
I now have 2 engineers coming tomorrow they now have found my modem seems to lose connection every 4-6hrs from the CMTS!. |
Re: What else could it be?
The huge thread in virginmedia.support.broadband.cable is quite entertaining too.
One small request, you think you could stop pasting the same logs of loss of downstream sync into the thread, makes it hard to read the to-and-fro comments and I'm sure they get the idea now. Other than that thank you, it's like watching a Watchdog story in real time :D |
Re: What else could it be?
its not the same logs so stop talking out of ur backside, ive been asked to feed back all disconnections and thats what im doing. No one asked u to read the thread if u dont want to read it avoid it, easy!
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Re: What else could it be?
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Re: What else could it be?
i beg ur pardon?
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Re: What else could it be?
Quote:
Between your setting deadlines, threatening to leave, engineer no-shows, tech support kissing your arse, etc, it's pure class. Frustrating as it is I'm sure for you it's a damn good read :D |
Re: What else could it be?
Right ive been given a TEST! 50mb modem to use for a few days so they can get more stats from my line.
Downloaded a file from VM Game files and it hit 5.6mb/s before falling back and averaging around 4.5mb. http://www.speedtest.net/result/591730989.png |
Re: What else could it be?
If people don't start being a little more respectful of other peoples' levels of knowledge this thread will get locked and infractions dished out.
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Re: What else could it be?
after about 2hrs so far ive noticed a few things..
1. on the Ambit 256 my upstream fluctuates upwards from 50dBmv to the highest ive seen it of 54dBmv and on the 50mb it fluctuates downwards from 49 to around 47.3. 2. on the new 50mb modem there are NO downstream or upstream lock errors occuring what so ever. |
Re: What else could it be?
i think i have worked out that the problem is now upstream related.
On 20mb modem used to reboot and not lock on. on 50mb my connection stops, in network and sharing center, the connection between computer and network is fine, but network and internet drops for about 20 seconds. Also when this is happening the upload lite on the modem blinks very slow. |
Re: What else could it be?
Virgin claim that my modem wasnt doing what i claimed it was.
This time i recorded it! http://www.youtube.com/watch?v=i_wop8jMhKI |
At god damn last!
I just recieved a call from a Virgin Network Engineer.
After being told "I cant prove im having the problem and its impossible im having the problem" another modem acting like mine was witnessed in Swansea just up the road on Saturday. I have also recorded my problems for "Proof" and uploaded them to Youtube and they have seen it and admitted its the same problem and a problem with the BSR where its not assigning IPs properly to some modems and must be a config error as its only giving out 24hr leases to some modems and then dropping connections when they r up like mine. Here are the vids... http://www.youtube.com/watch?v=i_wop8jMhKI http://www.youtube.com/watch?v=Q-N-4rZ37QQ This one shows the modem a few mins later than the video above locked on but still unable to get a connection to the internet. http://www.youtube.com/watch?v=xganVqIP9Ec |
Re: What else could it be?
Please keep to one thread about the same problem
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Re: What else could it be?
Hi
I think I maybe having the same problem as you Welshchris. For the last 3 weeks now (mostly everyday) my internet just dies, stone cold dead. It happens mostly overnight. Because every bloody morning I go to go look at the news and bang 'no connection'. It's really annoying having to reset you CM + router everyday. So do you think the same is happening to me? ie the 24hr thing? I'm in swansea too btw. |
Re: What else could it be?
1 Attachment(s)
Here's my info.
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(Click pic below for the CM log) |
Re: What else could it be?
Here's another thought aswell, when its gone down, I've gone into my routers page (192.168.1.1) and normally you should see your virgin ip (ie 84.153.bla.bla), but I'm pretty sure it was showing 0.0.0.0.
So that would mean a problem on their end wouldn't it not? As if it cannot assign me an IP until the modem is rebooted. Looks like you've nailed it on the head with assigning ip problem and expiring after 24hrs, this does sound very much like our problem. |
Re: What else could it be?
Quote:
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Re: What else could it be?
Thanks! Hope you (we) get it sorted.
I've not had much problems with VM over the years, as you can probably tell I only show up on cableforum if I am pretty sure the problem is on there end, there does not seem to be any problems on my end. All the best |
Re: What else could it be?
right for those having the probs we are having in Swansea or elsewhere this is what ive been updated on so far.....
We are looking at DHCP Server issues. There seems to be a problem with the way the spanning tree is put out on them, and also the false requests they are getting from Routers that cause them to either ignore the request or shut down the ports. So basically whats happening instead of the IP Lease getting renewed or the modem getting issued with an IP at switch on neither happens and the ready light flashes with no connection what so ever. So far although they know the problem is there they dont know where it is or how to fix it. |
Re: What else could it be?
Right ive now been told they r gonna try and get a repull organised....
But why cant they understand it doesnt lie in the cabling between my flat and the cabinet as this wouldnt be affecting all the other people in Swansea with identical issues! |
Re: What else could it be?
I must have missed where 3 people posting on here was indicative of everyone in Swansea.
I would imagine a few more complaints if this were affecting everyone in the Swansea area, would also be on the service status page. There's several posters here who are on the Swansea network who are, going by the lack of complaints from them, happily ticking over. You realise that ex-ntl tech support is based in very close to Swansea and a lot of those guys would be using the Swansea network. I would imagine they would be quite aware of issues with their staff cable. As posted previously by a tech on this thread and as you've reported there have been power fluctuations and a repull is a good idea if nothing else is evident. If you have so little confidence you can give your month's notice at this time also. |
Re: What else could it be?
Quote:
Also the other 3 people found just happen to be on the same part of the BSR cpc2-cwma7-2-0-cust***.7-3.cable.virginmedia.com and just happen to drop out at the EXACT same times as i do. |
Re: What else could it be?
That'll point to a fault with your local cabling in that case, assuming that everyone is dropping out simultaneously with you. Certainly doesn't indicate DHCP though, that'd kill everyone in the entire area off as their leases expired.
Given that you don't believe that DHCP is ok why are you so sure that the tech guys are correct saying that the cabling is fine, especially in light of how you originally reported this, as spiking upstream transmit power? You do know that the local network engineers have absolutely no way of checking the 'spanning tree' on the DHCP servers, right? Did you ever capture a report of how long one of the leases that the DHCP is giving you is? |
Re: What else could it be?
Local cabling, there r 2 others affected that are atleast 5 miles away from i am i wouldnt call that local cabling!
---------- Post added at 18:29 ---------- Previous post was at 18:25 ---------- Quote:
I have captured the leases and it tends to die around the time the leases are up, im never given the same lease time, its either 24hrs, 48hrs, 6 or 7days. |
Re: What else could it be?
Quote:
I think you have to be mistaken here, they are unlikely to cover that wide an area, an entire legacy uBR, all 4 cards, covers an area similar to or wider than a BSR / 10k card. Again if this were affecting everyone in Swansea due to being a DHCP server tech support agents would be jumping up and down to get it fixed and it would be a P1 or MSO. It would be very obvious that this is an issue as fault levels in Swansea would go through the roof. Have second line told you, at any time, that it's the DHCP server at fault? Local network guys have no access to either that DHCP server or the switch it is connected to and have no way to conclude that it is what is at fault. Regarding the repull - if you are so certain that it is not what is at fault it may be wasteful but it's what happens when you sent flurries of emails and letters of complaint to every man and their dog, a number of different people going in different directions to try and deal with the same issue. Too many cooks, broth, etc. If you are sure the repull isn't necessary you can refuse it. Sounds like VM are as confused as you are on this issue. |
Re: What else could it be?
check a map Im in high street in swansea, one of the others here are in Fforestfach in swansea, other is in Cwmburla where the UBR/BSRs are and they have sent me messages with what cards they r on and they r on identical to me, the only thing that differs is customer number....
Local network team have been in touch not only with second line support but also a team above them which has told them its a possible spanning tree error on the BSR as its been witnessed with a few others. Here are all the times of drop outs sine October 14th.... Bare in mind each time it drops the DCHP gives me a new IP lease also and in the event viewer it tells me that it lost its lease from Modems IP address... 14th Oct.. 16:21 + 17:03 15th Oct.. DATE GIVEN 50mb...20:51 + 21:56 16th Oct.. 16:11 17th Oct.. 00:48 18th Oct.. 4:03am 4:24am Switched back to 20mb as i was told to use for 3 days only... 19th Oct.. 4:09am 16:00 19:24 Told by engineer who found someone with identical issues to me to switch back to 50mb so diagnostics could be run. 20th Oct.. 00:15 00:20 19:26 19:28 21st Oct.. 20:21 20:30 22nd Oct 4:49am 18:06 18:10 23rd Oct.. 13:05 and back to 20mb as told... 24th Oct.. 1am and couldnt get an IP address until 5:44am 13:10 15:32 16:10 16:29 and switched back to 50mb cos i lost temper to see if it would make any difference... 19:45 25th Oct.. 4am 4:07am 16:26 16:30 21:14 22:34 26th Oct.. 11:24am 14:18 and back to 20mb 16:30 27th Oct 12:05 12:08 12:37 12:49 12:55 and thats so far today. |
Re: What else could it be?
I have my doubts that Virgin are giving leases lasting 3 minutes or 12 minutes. The shortest possible lease on the network which was as far as I know for pre-registration modems only, is 24 hours. You are losing sync due to RF issues.
Your PCs losing their IP addresses will not cause the modem to go offline. The modem is not the device handing out IP addresses and if the PCs are claiming to have lost their lease from the modem they are wrong, the modem is not visible and the IP lease should be sourced from the DHCP server not the modem. It is impossible for the modem to give a public IP address lease. Of course, if your devices think they are losing lease from the modem, where do you think they are going when they try to renew it. No wonder it's failing if they are harassing the modem to renew a lease it never supplied in the first place, they should be request the renew from VM's DHCP servers. If you have a PC directly connected to the modem and you do an ipconfig /all it should show a VM DHCP server, if it's showing 192.168.100.1 this is the modem and is wrong. The modem's IP address is for management or when it loses sync in which case it may give an IP address to devices behind it which is probably what happens from time to time. The above scenario would also explain why a modem reboot is required. Until ethernet goes down for a while your kit keeps harassing whatever it can find for an IP address. EDIT: You've been in IT for 12 years apparently, if you haven't just spent a decade plugging DIMMs and cards in you should be good to get Wireshark running on a PC connected directly to a modem and capture some traces of the DHCP transactions. |
Re: What else could it be?
So is there anything that u can suggest i can tell them?
Oh and btw i know ur goin to tell me this isnt possible but this was witnessed by a Virgin tech here also that couldnt believe it also.... i was issued a 169ip address and was still able to go online for over 4mins. |
Re: What else could it be?
Quote:
If you can get Wireshark running it will supply some more information on the DHCP traffic. I think what's happening is that your kit is trying to renew DHCP lease using the modem which doesn't work too hotly. I'm not sure why or how it gets the first initial lease but suspect it's trying to renew from the modem. You can check this by noting the output on ipconfig /all on a PC connected directly to a modem. And no I'm not going to disbelieve the 169 thing at all, appearances can be deceptive and I've seen what looks at first glance like weird stuff but actually made sense in the end. |
Re: What else could it be?
i have it running and will keep it running until the next drop
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Re: What else could it be?
Enter this as a filter:
ip.addr == 192.168.100.1 Should show if it's sending anything untoward to the modem. Go to a command prompt and type this: ipconfig /all | find "DHCP Server" See what output you get from that, copy/paste it here. |
Re: What else could it be?
i have no idea how to use this software what so ever.
---------- Post added at 20:11 ---------- Previous post was at 19:46 ---------- when applying the filter theres no traffic what so ever been shown |
Re: What else could it be?
Hi chris just want to say have had the exact same problem for the last 8-12 weeks easy i am also in SA5. modem reboots every now and again sometimes sevral times in a row. have tried ringing VM but just dont like to wait for hours to get through to be told the same thing over and over . also been with cable since the start many many years ago this is only the second problem ive had lol how ironic . funny tho the problem coincided with the replacement of a large cabinet on the corner of pentrigething and fforydd brain outside the council offices there after the old one was demolished by a car . have no idea if revelant but still thought it was stange. hope your problem sorted soon because have a funny feeling that mine will be at the same time.;)
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Re: What else could it be?
Justice there r atleast 5 of us now that im aware of in Swansea with itentical issues.
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Re: What else could it be?
i don't doubt that m8 thought i was the only one must be a real big reason then. bet theres more that just brush it aside like me. Not Right tho bloody anoying sometimes :mad:
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Re: What else could it be?
Quote:
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