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-   -   OX12 Issues (https://www.cableforum.uk/board/showthread.php?t=33682946)

Dirtbox 21-11-2011 19:23
OX12 Issues
 
Hi all

I came here from the official VM forums and would really appreciate if someone could give me some expert advice.

http://community.virginmedia.com/t5/...12/td-p/856865 is my original thread. I'll copy and paste if thats ok:

Quote:
Hi Support

I wonder if you could look into my current connection woes for me.

Background is I'm on the 20 Meg BB, currently using a black VM branded modem connected to a Belkin router. I'm a long term customer of over 10 years on this current connection, and well versed in occasional connection problems!


My issue is for the last 2 weeks I'm having consistant connection issues, often showing as an initial "spiking" of my speeds, and eventually a full disconnection. It's normally in the evenings, between 7-9pm. Usually this resolves after a short (10-30min) period, and a modem/router reboot, but can be longer.

I've had issues with signal levels in the past, but nothing of recent (2yrs+). I've had attenuators (?) fitted on previous occasions, on different modems, and also had them removed!

There was an issue with the cabinet on my street corner around 4 years ago, where a metal cover had come loose internally and was affecting my connection, I think it was to do with amplification but I can't really remember. This was noticable as my issues always coincided with colder/wetter weather, and my service was markedly better after the engineer visit.

Anyway, I've provided my current stats, I'm assuming power levels again but will of course provide any furthur information as requested. Note that the event log probably coincided with me changing the wireless channel number as a precaution this evening.

OS is Windows XP SP2. Wireless connection.

Many thanks in advance.
Nick.


Cable Modem Event Log
First Time Last Time Priority Description
Thu Nov 17 20:39:28 2011 Thu Nov 17 20:39:28 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Thu Nov 17 20:39:28 2011 Thu Nov 17 20:39:28 2011 Information (7) SA Map State Machine Started
Thu Nov 17 20:36:13 2011 Thu Nov 17 20:36:13 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Thu Nov 17 20:36:13 2011 Thu Nov 17 20:36:13 2011 Information (7) SA Map State Machine Started
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) The s/w filename specified in the config file is the same as ...
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) A software upgrade filename was specified in the config file.
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) Authorized
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) Registration complete!
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) We registered with a DOCSIS 1.1 config file!
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) Received a REG-RSP message from the CMTS...
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) Sending a REG-REQ to the CMTS...
Thu Nov 17 20:34:47 2011 Thu Nov 17 20:34:47 2011 Information (7) CableModem SNMP configure complete
Thu Nov 17 20:34:46 2011 Thu Nov 17 20:34:46 2011 Information (7) IP init completed ok
Thu Nov 17 20:34:46 2011 Thu Nov 17 20:34:46 2011 Information (7) CableModem TFTP init ok
Thu Nov 17 20:34:46 2011 Thu Nov 17 20:34:46 2011 Information (7) CableModem DHCP client init ok
Thu Nov 17 20:34:46 2011 Thu Nov 17 20:34:46 2011 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) MAP w/initial maintenance region received
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) Received a UCD message!
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
Thu Nov 17 20:31:20 2011 Thu Nov 17 20:31:20 2011 Critical (3) DHCP WARNING - Non-critical field invalid in response.
Thu Nov 17 20:31:05 2011 Thu Nov 17 20:31:05 2011 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Thu Nov 17 20:26:40 2011 Thu Nov 17 20:26:40 2011 Critical (3) DHCP WARNING - Non-critical field invalid in response.
Thu Nov 17 20:26:22 2011 Thu Nov 17 20:26:22 2011 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Tue Nov 15 18:26:41 2011 Tue Nov 15 18:26:41 2011 Critical (3) DHCP WARNING - Non-critical field invalid in response.

Cable Modem Downstream
Downstream Lock : Locked
Downstream Channel Id : 185
Downstream Frequency : 434250000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : -2.8 dBmV
Downstream SNR : 35.6 dB

Upstream Lock : Locked
Upstream Channel ID : 1
Upstream Frequency : 45800000 Hz
Upstream Modulation : QPSK
Upstream Symbol Rate : 5120 Ksym/sec
Upstream transmit Power Level : 55.2 dBmV
Upstream Mini-Slot Size : 4

Tracing route to www.l.google.com [209.85.147.104]
over a maximum of 30 hops:
1 1 ms <1 ms <1 ms percypc [192.168.2.1]
2 2310 ms 12 ms 23 ms cpc3-oxfd20-2-0-gw.4-3.cable.virginmedia.com [21
7.137.124.1]
3 9 ms 11 ms 12 ms oxfd-core-1b-ae1-2259.network.virginmedia.net [2
13.106.245.209]
4 16 ms 28 ms 27 ms brnt-bb-1b-xe-703-0.network.virginmedia.net [212
.43.162.98]
5 27 ms 18 ms 19 ms manc-bb-1a-ae5-0.network.virginmedia.net [212.43
.163.85]
6 22 ms 30 ms 16 ms manc-bb-1b-ae0-0.network.virginmedia.net [62.253
.187.178]
7 25 ms 23 ms 24 ms tele-ic-3-ae0-0.network.virginmedia.net [212.43.
163.70]
8 25 ms 38 ms 23 ms 158-14-250-212.static.virginmedia.com [212.250.1
4.158]
9 39 ms 27 ms 19 ms 209.85.252.76
10 35 ms 28 ms 36 ms 209.85.253.92
11 27 ms 32 ms 45 ms 66.249.95.173
12 31 ms 32 ms 32 ms 209.85.252.83
13 44 ms 44 ms 55 ms 216.239.46.253
14 32 ms 31 ms 31 ms scholar.l.google.com [209.85.147.104]
Trace complete.


11/17/2011 9:36 PM GMT 217.137.126.239 7.01 Mb/s 0.66 Mb/s 32 ms Coventry ~ 50 mi Image
11/17/2011 9:26 PM GMT 217.137.126.239 22.60 Mb/s 1.08 Mb/s 31 ms Coventry ~ 50 mi Image
11/17/2011 9:25 PM GMT 217.137.126.239 8.47 Mb/s 1.47 Mb/s 31 ms Coventry ~ 50 mi Image
11/17/2011 9:10 PM GMT 217.137.126.239 16.98 Mb/s 1.09 Mb/s 31 ms Coventry ~ 50 mi Image
11/17/2011 9:09 PM GMT 217.137.126.239 15.45 Mb/s 1.19 Mb/s 38 ms Coventry ~ 50 mi Image

Basically should I just wait it out or is my problem likely more local and in need of an engineer?

Here is my latest log after my latest outage earlier today:

Cable Modem Event Log
First Time Last Time Priority Description
Mon Nov 21 18:35:01 2011 Mon Nov 21 18:35:01 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Mon Nov 21 18:35:01 2011 Mon Nov 21 18:35:01 2011 Information (7) SA Map State Machine Started
Mon Nov 21 18:34:59 2011 Mon Nov 21 18:34:59 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Mon Nov 21 18:34:59 2011 Mon Nov 21 18:34:59 2011 Information (7) SA Map State Machine Started
Mon Nov 21 18:34:13 2011 Mon Nov 21 18:34:13 2011 Information (7) The s/w filename specified in the config file is the same as ...
Mon Nov 21 18:34:13 2011 Mon Nov 21 18:34:13 2011 Information (7) A software upgrade filename was specified in the config file.
Mon Nov 21 18:34:12 2011 Mon Nov 21 18:34:12 2011 Information (7) Authorized
Mon Nov 21 18:34:06 2011 Mon Nov 21 18:34:06 2011 Information (7) Registration complete!
Mon Nov 21 18:34:06 2011 Mon Nov 21 18:34:06 2011 Information (7) We registered with a DOCSIS 1.1 config file!
Mon Nov 21 18:34:06 2011 Mon Nov 21 18:34:06 2011 Information (7) Received a REG-RSP message from the CMTS...
Mon Nov 21 18:34:06 2011 Mon Nov 21 18:34:06 2011 Information (7) Sending a REG-REQ to the CMTS...
Mon Nov 21 18:34:06 2011 Mon Nov 21 18:34:06 2011 Information (7) CableModem SNMP configure complete
Mon Nov 21 18:34:05 2011 Mon Nov 21 18:34:05 2011 Information (7) IP init completed ok
Mon Nov 21 18:34:05 2011 Mon Nov 21 18:34:05 2011 Information (7) CableModem TFTP init ok
Mon Nov 21 18:34:05 2011 Mon Nov 21 18:34:05 2011 Information (7) CableModem DHCP client init ok
Mon Nov 21 18:34:05 2011 Mon Nov 21 18:34:05 2011 Critical (3) DHCP WARNING - Non-critical field invalid in response.
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) MAP w/initial maintenance region received
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) Downstream sync ok
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) Beginning initial ranging...
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) downstream time sync acquired...
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) Downstream sync ok
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) starting ds time sync acquisition...
Mon Nov 21 18:33:45 2011 Mon Nov 21 18:33:45 2011 Information (7) Received a UCD message!
Mon Nov 21 18:33:43 2011 Mon Nov 21 18:33:43 2011 Information (7) MAP w/initial maintenance region received
Mon Nov 21 18:33:41 2011 Mon Nov 21 18:33:41 2011 Information (7) Beginning initial ranging...
Mon Nov 21 18:33:41 2011 Mon Nov 21 18:33:41 2011 Information (7) Received a UCD message!
Mon Nov 21 18:33:40 2011 Mon Nov 21 18:33:40 2011 Critical (3) Unicast Ranging Received Abort Response - Re- initializing MAC
Mon Nov 21 18:32:58 2011 Mon Nov 21 18:32:58 2011 Information (7) MAP w/initial maintenance region received
Mon Nov 21 18:32:58 2011 Mon Nov 21 18:32:58 2011 Information (7) Downstream sync ok
Mon Nov 21 18:32:58 2011 Mon Nov 21 18:32:58 2011 Information (7) Beginning initial ranging...
Mon Nov 21 18:32:58 2011 Mon Nov 21 18:32:58 2011 Information (7) downstream time sync acquired...
Mon Nov 21 18:32:58 2011 Mon Nov 21 18:32:58 2011 Information (7) Downstream sync ok

It is definitely worse late afternoons and evenings although not exclusive to these times. Any further information please ask.

Any help or advice is REALLY appreciated!
Nick

Mick Fisher 21-11-2011 20:30
Re: OX12 Issues
 
Quote:
Upstream transmit Power Level : 55.2 dBmV
Your upstream is seems high, maybe that's the problem.

Phone it in and ask for a Tech to adjust it.

Dirtbox 22-11-2011 10:49
Re: OX12 Issues
 
Thanks for the reply Mick.

Yes, thats where my thoughts lie if I'm honest. It's something I've habitually had and I think I must teeter on the edge of whats workable, with these problems showing when it goes too high.

Out of interest, I was up late last night, and my connection had been stable for a good 6 hrs. We had a very heavy rainstorm at 3am, and immediately my connection dropped. The modems power light was flashing very fast (several times a second) and obviously my router dropped its connection.

The storm passed, the power light then changed to flashing but much slower. I didn't reset or touch either modem or router. Woke up with the modem light still slowly flashing, but with a connection. Here's the log:


Cable Modem Event Log
First Time Last Time Priority Description
Tue Nov 22 10:10:00 2011 Tue Nov 22 10:10:00 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Tue Nov 22 10:10:00 2011 Tue Nov 22 10:10:00 2011 Information (7) SA Map State Machine Started
Tue Nov 22 10:09:56 2011 Tue Nov 22 10:09:56 2011 Information (7) Map Reject - Downstream Traffic Flow Not Mapped to BPI+ SAID ...
Tue Nov 22 10:09:56 2011 Tue Nov 22 10:09:56 2011 Information (7) SA Map State Machine Started
Tue Nov 22 03:56:01 2011 Tue Nov 22 03:56:01 2011 Information (7) Downstream sync ok
Tue Nov 22 03:56:01 2011 Tue Nov 22 03:56:01 2011 Information (7) DCC arrive new
Tue Nov 22 03:56:01 2011 Tue Nov 22 03:56:01 2011 Information (7) downstream time sync acquired...
Tue Nov 22 03:56:01 2011 Tue Nov 22 03:56:01 2011 Information (7) Downstream sync ok
Tue Nov 22 03:56:01 2011 Tue Nov 22 03:56:01 2011 Information (7) starting ds time sync acquisition...
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) Received a UCD message!
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) Locked on the downstream. Waiting for UCDs...
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) Downstream lock ok
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) Received a UCD message!
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) DCC depart old
Tue Nov 22 03:56:00 2011 Tue Nov 22 03:56:00 2011 Information (7) Received DCC-REQ message...
Tue Nov 22 03:55:55 2011 Tue Nov 22 03:55:55 2011 Information (7) The s/w filename specified in the config file is the same as ...
Tue Nov 22 03:55:55 2011 Tue Nov 22 03:55:55 2011 Information (7) A software upgrade filename was specified in the config file.
Tue Nov 22 03:55:55 2011 Tue Nov 22 03:55:55 2011 Information (7) Authorized
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) Registration complete!
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) We registered with a DOCSIS 1.1 config file!
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) Received a REG-RSP message from the CMTS...
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) Sending a REG-REQ to the CMTS...
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) CableModem SNMP configure complete
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) IP init completed ok
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) CableModem TFTP init ok
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 Information (7) CableModem DHCP client init ok
Tue Nov 22 03:55:54 2011 Tue Nov 22 03:55:54 2011 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 Critical (3) No Ranging Response received - T3 time-out
Time Not Established Time Not Established Information (7) MAP w/initial maintenance region received
Time Not Established Time Not Established Critical (3) No Ranging Response received - T3 time-out
Time Not Established Time Not Established Information (7) MAP w/initial maintenance region received

Does this suggest a problem with the street cabinet, the cable itself or the connection point to my house? I can't believe its a coincidence but I'm happy to be proved wrong.

Again, thanks for any help.

Nick

Mick Fisher 22-11-2011 13:05
Re: OX12 Issues
 
Quote:
Originally Posted by Dirtbox (Post 35333493)
Does this suggest a problem with the street cabinet, the cable itself or the connection point to my house? I can't believe its a coincidence but I'm happy to be proved wrong.

Again, thanks for any help.

Nick
I'm not qualified to make a diagnosis but I would guess it could be any or all of your suggestions.

I think what is certain is that your issue needs to be investigated by a suitably qualified technician.

Dirtbox 22-11-2011 13:14
Re: OX12 Issues
 
Quote:
Originally Posted by Mick Fisher (Post 35333544)
I'm not qualified to make a diagnosis but I would guess it could be any or all of your suggestions.

I think what is certain is that your issue needs to be investigated by a suitably qualified technician.
Again, thanks Mick.

Indeed, and is now booked for this Thursday evening. Lets see what happens!

Nick

Mick Fisher 22-11-2011 13:47
Re: OX12 Issues
 
Quote:
Originally Posted by Dirtbox (Post 35333550)
Again, thanks Mick.

Indeed, and is now booked for this Thursday evening. Lets see what happens!

Nick
Let's hope it gets resolved.


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