Cable Forum - Connection issues

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- - Connection issues (https://www.cableforum.uk/board/showthread.php?t=33660848)

Connection issues

Upgraded to 20MB yesterday evening and since then, the connection has been shocking.

Code:

C:\Users\Richard>ping www.bbc.co.uk



Pinging www.bbc.net.uk [212.58.253.67] with 32 bytes of data:

Reply from 212.58.253.67: bytes=32 time=647ms TTL=118

Reply from 212.58.253.67: bytes=32 time=703ms TTL=118

Reply from 212.58.253.67: bytes=32 time=746ms TTL=118

Reply from 212.58.253.67: bytes=32 time=660ms TTL=118



Ping statistics for 212.58.253.67:

    Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

    Minimum = 647ms, Maximum = 746ms, Average = 689ms

Code:

Downstream Lock : Locked         Downstream Channel Id : 3         Downstream Frequency : 331000000 Hz         Downstream Modulation : QAM64     Downstream Symbol Rate : 5056.941 Ksym/sec         Downstream Interleave Depth : taps32Increment4         Downstream Receive Power Level : 5.7 dBmV         Downstream SNR : 36.8 dB

Code:

Upstream Lock : Locked         Upstream Channel ID : 3         Upstream Frequency : 41000000 Hz         Upstream Modulation : QAM16         Upstream Symbol Rate : 1280 Ksym/sec         Upstream transmit Power Level : 34.0 dBmV         Upstream Mini-Slot Size : 4

Can some one take a looskie please :D

Re: Connection issues..

From my analysis of the modem stats you kindly provided, the downstream power's a touch on the high side, and the upstream power's a touch low. Downstream ideally should be around 0 dBmV. Upstream should ideally be anywhere between 40 and 50 dBmV, but can be as low as mid-30s. Somebody more qualified than me can either throw out what I said or back it up with a solution. :)

Re: Connection issues..

Upstream congestion. Reboot cable modem until you're no longer on the upstream at 41MHz.

Re: Connection issues..

I've got an atenatour on the modem and the stb, from my engineers visit. I've rebooted 6 / 7 times.

Re: Connection issues..

Then you're probably hosed. It's congestion though, no doubt. You appear to be in an area that's having every ounce of bandwidth wrung out of it.

You're on a shoehorned in 27Mbit downstream and a shoehorned in 4.5Mbit upstream.

Switch the modem off for a little while instead of just rebooting it, and if it has a factory reset option use it, might be able to stop it seeking the 331MHz downstream and then if you're lucky you'll get the 402.75MHz one and a different upstream.

Re: Connection issues..

Quote:

Originally Posted by Broadbandings (Post 34952443)

Upstream congestion. Reboot cable modem until you're no longer on the upstream at 41MHz.

Is it possible to ask through the appropriate newsgroup to have your upstream changed to a less congested one? .....or does it not work like that?

Re: Connection issues..

Quote:

Originally Posted by RobboEdin (Post 34952497)

Is it possible to ask through the appropriate newsgroup to have your upstream changed to a less congested one? .....or does it not work like that?

The system is self-balancing. Even if there is a better one available there's no guarantee of staying on it.

The point of the resetting and stuff is to see if there are any more available, there might not be.

Re: Connection issues..

Thanks for this. Ive been powering down the modem and leaving it as you suggested, still the same. "None peak" getting around 16MB - "peak" getting around 9.6MB. I've took off the atenautor and the upstream power level just shoots up and the conneciton drops right down to about 2MB, again, tried direct etc etc. Makes difference.

Re: Connection issues..

Okay. Today, down to 4.9MB all night.

Code:

Downstream Lock : Locked         Downstream Channel Id : 3         Downstream Frequency : 331000000 Hz         Downstream Modulation : QAM64     Downstream Symbol Rate : 5056.941 Ksym/sec         Downstream Interleave Depth : taps32Increment4         Downstream Receive Power Level : 5.9 dBmV         Downstream SNR : 35.9 dB

Code:

Upstream Lock : Locked         Upstream Channel ID : 3         Upstream Frequency : 41000000 Hz         Upstream Modulation : QAM16         Upstream Symbol Rate : 1280 Ksym/sec         Upstream transmit Power Level : 34.5 dBmV         Upstream Mini-Slot Size : 4

Event log

Code:

Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) The s/w filename specified in the config file is the same as ...   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) A software upgrade filename was specified in the config file.   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) Authorized   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) Registration complete!   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) We registered with a DOCSIS 1.0 config file!   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) Received a REG-RSP message from the CMTS...   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) Sending a REG-REQ to the CMTS...   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) CableModem SNMP configure complete   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) IP init completed ok   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) CableModem TFTP init ok   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Information (7) CableModem DHCP client init ok   Fri Jan 29 13:31:12 2010  Fri Jan 29 13:31:12 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   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 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   Thu Jan 28 18:54:07 2010  Thu Jan 28 18:54:07 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Mon Jan 25 13:27:10 2010  Mon Jan 25 13:27:10 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Time Not Established Time Not Established Critical (3) No Ranging Response received - T3 time-out   Mon Jan 25 13:26:34 2010  Mon Jan 25 13:26:34 2010  Critical (3) Resetting the cable modem due to docsDevResetNow   Sat Jan 23 20:13:37 2010  Sat Jan 23 20:13:37 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Fri Jan 15 21:14:15 2010  Fri Jan 15 21:14:15 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Time Not Established Time Not Established Critical (3) No Ranging Response received - T3 time-out   Sat Jan 09 10:30:55 2010  Sat Jan 09 10:30:55 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Sat Jan 02 22:19:27 2010  Sat Jan 02 22:19:27 2010  Critical (3) DHCP WARNING - Non-critical field invalid in response.   Thu Dec 31 08:50:03 2009  Thu Dec 31 08:50:03 2009  Critical (3) DHCP WARNING - Non-critical field invalid in response.

Re: Connection issues..

Resolved. Engineer booked.
:)

Re: Connection issues..

All sorted now. Engineer just been, he was good. He got authorisation and gave me a 50MB modem, he explained it was the frequencies and now, I am just short of 20MB. Well done to Virgin and the very very very helpfull tech. He also extended my wire whilst he was here, so i'm very happy.

Broadbandings, thank you.

Re: Connection issues..

That was good of him and guaranteed you're on the new network now.

Plus if you ever want to move to 50Mbit no need for an engineer visit, which is nice.

Great engineer he went way beyond the call.

Re: Connection issues..

Quote:

Originally Posted by Broadbandings (Post 34956140)

That was good of him and guaranteed you're on the new network now.

Plus if you ever want to move to 50Mbit no need for an engineer visit, which is nice.

Great engineer he went way beyond the call.

It was very nice indeed. Great guy, it was the same tech. He checked with networks before arriving and confirmed no congestion. Nice looking modem, I will move to 50MB eventually, just a slow process.

Re: Connection issues..

Hey :)
Let me get this right; you're on a 20Mb service with the "new" 50Mb modem?
Never knew that Vm did this! I got an engineer coming out to sort out a slow internet connection (paying for 20mb and only getting between 5-12Mb)... I wonder if I can ge the shiny new modem ;)

Re: Connection issues..

Yup. He said it was a frequencies issue and I needed to be on a different frequency.

He had to get authorisation and ring to activate the modem.

Although, just had a wierd moment, with the modem.

Quote:

C:\Users\Richard>ping www.bbc.co.uk

Pinging www.bbc.net.uk [212.58.251.195] with 32 bytes of data:
Reply from 212.58.251.195: bytes=32 time=1240ms TTL=120
Reply from 212.58.251.195: bytes=32 time=103ms TTL=120
Reply from 212.58.251.195: bytes=32 time=816ms TTL=120
Reply from 212.58.251.195: bytes=32 time=1342ms TTL=120

Ping statistics for 212.58.251.195:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 103ms, Maximum = 1342ms, Average = 875ms