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Pixel8ted
08-06-2010, 14:29
Connection dropping on daily basis.Not sure how often as i have not been on the computer much of late due to ill health.Also have problem when downloading large demo files on Xbox360(ethernet cable to modem WRN2000) - continually stopping & having to restart download.

Connection does restart itself on occasion,however a reboot is often needed. Stats below.My downstream Power levels look a bit high but not sure.Any help is much appreciated..Thanks in advance



Cable Modem Downstream
DS-1 DS-2 DS-3 DS-4
Frequency 299000000 307000000 315000000 323000000
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y Y/Y/Y
Channel Id 13 14 15 16
Modulation 64QAM 64QAM 64QAM 64QAM
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 6.952
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level
(dBmV) 7.03 6.71 6.24 6.76
RxMER
(dB) 38.21 38.21 38.55 39.35
Correctable
Codewords 0 0 1 0
Uncorrectable
Codewords 241 774 243 792



Cable Modem Upstream
US-1 US-2 US-3 US-4
Channel Type 1.0 N/A N/A N/A
Channel ID 3 N/A N/A N/A
Frequency
(Hz) 37500000 N/A N/A N/A
Ranging Status Success N/A N/A N/A
Modulation 16QAM N/A N/A N/A
Symbol Rate
(KSym/sec) 2560 N/A N/A N/A
Mini-Slot Size 2 N/A N/A N/A
Power Level
(dBmV) 36.21 N/A N/A N/A
T1 Timeouts 0
T2 Timeouts 0 0 0 0
T3 Timeouts 18 0 0 0
T4 Timeouts 1 0 0 0



Tue Jun 1 21:30:55 2010 Wed Jun 2 02:01:23 2010 Critical (3) No Ranging Response received - T3 time-out;
Wed Jun 2 02:01:53 2010 Wed Jun 2 02:01:53 2010 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Wed Jun 2 02:01:58 2010 Time Not Established Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Thu Jun 3 19:57:09 2010 Thu Jun 3 19:57:20 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Thu Jun 3 23:46:47 2010 Sat Jun 5 19:02:36 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 07:28:37 2010 Sun Jun 6 07:28:37 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 08:12:06 2010 Sun Jun 6 08:12:06 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 08:12:08 2010 Sun Jun 6 08:12:08 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 08:48:56 2010 Sun Jun 6 08:48:56 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 10:04:28 2010 Sun Jun 6 12:45:35 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 14:41:02 2010 Sun Jun 6 21:04:24 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 21:04:54 2010 Sun Jun 6 21:04:54 2010 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 21:04:58 2010 Sun Jun 6 21:05:04 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 21:05:05 2010 Sun Jun 6 21:05:05 2010 Warning (5) B-INIT-RNG Failure - Retries exceeded;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 21:05:15 2010 Sun Jun 6 21:53:57 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 22:01:14 2010 Sun Jun 6 22:05:12 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 22:38:06 2010 Sun Jun 6 22:38:06 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 23:36:03 2010 Sun Jun 6 23:36:03 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Sun Jun 6 23:36:47 2010 Sun Jun 6 23:37:20 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 04:43:07 2010 Mon Jun 7 04:43:07 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 09:01:25 2010 Mon Jun 7 09:01:25 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 12:22:03 2010 Mon Jun 7 14:33:14 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 16:10:51 2010 Mon Jun 7 18:09:17 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 18:29:12 2010 Mon Jun 7 18:29:12 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 19:20:03 2010 Mon Jun 7 23:13:42 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:14:00 2010 Mon Jun 7 23:14:00 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:17:52 2010 Mon Jun 7 23:17:52 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:20:36 2010 Mon Jun 7 23:20:36 2010 Critical (3) SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:21:02 2010 Mon Jun 7 23:21:02 2010 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:21:10 2010 Mon Jun 7 23:23:36 2010 Warning (5) MDD message timeout;CM-MAC=;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:23:39 2010 Mon Jun 7 23:23:39 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:0d:66:23:f8:01;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:24:00 2010 Mon Jun 7 23:24:22 2010 Warning (5) MDD message timeout;CM-MAC=;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:24:34 2010 Mon Jun 7 23:24:34 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:0d:66:23:f8:01;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:24:41 2010 Mon Jun 7 23:28:16 2010 Warning (5) MDD message timeout;CM-MAC=;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:28:29 2010 Mon Jun 7 23:28:29 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=00:0d:66:23:f8:01;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:28:36 2010 Mon Jun 7 23:30:39 2010 Warning (5) MDD message timeout;CM-MAC=;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Mon Jun 7 23:30:54 2010 Mon Jun 7 23:31:15 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Tue Jun 8 08:25:46 2010 Tue Jun 8 08:25:46 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Tue Jun 8 11:24:30 2010 Tue Jun 8 11:24:30 2010 Critical (3) No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;
Tue Jun 8 11:26:49 2010 Tue Jun 8 12:07:28 2010 Warning (5) TEK Invalid - Invalid Key Sequence Number;CM-MAC=;CMTS-MAC=:a0;CM-QOS=1.1;CM-VER=3.0;

Kymmy
08-06-2010, 14:56
MAC's removed from post, please do not post MAC's of cable modems and/or serial numbers

Pixel8ted
08-06-2010, 15:08
MAC's removed from post, please do not post MAC's of cable modems and/or serial numbers
Thank you & my apologies.

Peter_
08-06-2010, 15:33
If you call in on 0800 052 0431 one of my colleagues will be able to help you.

merlintt
08-06-2010, 16:02
I only use my 50meg for my xbox its plugged straight into modem.I also noticed that my downloads get stuck,usually around 10%.

I never noticed this snag on the 20meg connection.

I`ve spoken to the uk 50meg team about problems when using xbox but tbh they weren`t much help.( no offense meant to anybody who works there;))

My connection seems ok ,good ping and downloads.

The only thing I`ve noticed that seems to help is rebooting the modem before I turn on my xbox.

Gavin78
08-06-2010, 16:07
Seems to be happening to a lot of people lately this with downloading files with the same modem.

Would be interesting to see the outcome of this. When I rang V today they did a line test and couldn't find anything. they told me to call back when modem goes off.

I've been connected direct today and it seems ok but then it can go like this for hours and then stop working again.

Ignitionnet
08-06-2010, 18:25
Power Level (dBmV) 36.21

Excessive power adjustments most likely. This is not a possible upstream power level.

General Maximus
08-06-2010, 19:09
Excessive power adjustments most likely. This is not a possible upstream power level.

Because it is too high or too low? I have been having the same problem as the OP over the last 24 hours and my upstream power level is 48.25 atm?

Where does everyone live? I am in Lincoln. The Indian dudes have told me my modem is faulty but if you guys are in the same area I know the modem is fine and the problem lies elsewhere.

Chrysalis
08-06-2010, 20:06
there seems to be a lot of modem swaps that occur on VM :)

either high failure rate or a swap and hope policy :)

pip08456
09-06-2010, 00:48
Excessive power adjustments most likely. This is not a possible upstream power level.

Could you expand on this please Igni as Masque's sticky states

"* Upstream signal levels (from the modem) should be between 34 and
55dBmV."

Peter_
09-06-2010, 08:33
Could you expand on this please Igni as Masque's sticky states

"* Upstream signal levels (from the modem) should be between 34 and
55dBmV."
Power adjustments within the modem caused by FEC errors, T3's and such like.

Ignitionnet
09-06-2010, 15:42
Power adjustments are a standard part of operation as network conditions change due to heat, etc, however if a modem has to increase or decrease its' transmit power by 3dBmV or more at one time this is abnormal. These are considered to be indicative of possible upstream issues.

There is a target receive power at the CMTS and the modem adjusts its' transmit power as directed by the CMTS in order to reach this target. If a connector comes loose or an amplifier runs into strife and the power level that reaches the CMTS from the modem drops from say 0dBmV, which is the target receive power level, to -4dBmV the next time periodic station maintenance happens the CMTS will direct the modem to increase its' transmit power by 16 0.25dBmV increments to get the receive power back to 0dBmV and increments the power-adjust counter it holds for the modem in its' flap list.

They are not caused by FECs or T3s, they are caused by electrical and optical changes on the return path, these same changes can cause FECs and T3s.

36.21dBmV is an impossible transmit value because the modems increment transmit power in 0.25dBmV steps, all transmit power should end in .00, .25, .50 or .75 with the exception of 58.21dBmV which the Ambit 300 uses to indicate that it is transmitting at maximum.

pip08456
09-06-2010, 15:55
Thanks for that Igni. As usual you enlighten us.

Chrysalis
09-06-2010, 18:20
I only use my 50meg for my xbox its plugged straight into modem.I also noticed that my downloads get stuck,usually around 10%.

I never noticed this snag on the 20meg connection.

I`ve spoken to the uk 50meg team about problems when using xbox but tbh they weren`t much help.( no offense meant to anybody who works there;))

My connection seems ok ,good ping and downloads.

The only thing I`ve noticed that seems to help is rebooting the modem before I turn on my xbox.

xbox live is hard to diagnose, sometimes downloads may seem slow but of course you cannot view live throughput speeds in the xbox gui. Also the xbox live servers I think do not have particurly high capacity and are certianly not as high performing as the rest of microsoft's network.

pip08456
09-06-2010, 18:24
As with any network server load can cause problems.

merlintt
10-06-2010, 10:49
xbox live is hard to diagnose, sometimes downloads may seem slow but of course you cannot view live throughput speeds in the xbox gui. Also the xbox live servers I think do not have particurly high capacity and are certianly not as high performing as the rest of microsoft's network.

I just thought it strange that when I was on 20meg I never had this problem.
The download thing isn`t really a problem,I just have to cancel the download and start again,it picks up where it stopped no problem.

Pixel8ted
10-06-2010, 13:57
Thanks for all the help & thanks for phone number Masque.Technician is booked for Fri 10th June,so will let you know the outcome of his visit.

Chrysalis
10-06-2010, 14:43
I just thought it strange that when I was on 20meg I never had this problem.
The download thing isn`t really a problem,I just have to cancel the download and start again,it picks up where it stopped no problem.

if it just stops and didnt happen on 20mbit, then it does lead to a VM side problem.

merlintt
10-06-2010, 14:54
Honestly I never had these problems on 20meg,I`m not here to slag off VM,overall i think VM are very good.

I usually reboot my modem before i turn my xbox on,this seems to help.

Pixel8ted
11-06-2010, 17:22
Technician arrived & stuck on an attenuator which brought my levels down a bit.however he told me it will keep happening(connection dropping)as they do not know for sure what is causing it.
He suggested it may be noise & that the problem would need to be fixed before the 100 mb roll out.He also told me he has the same problem with his 50 mb connection.
I tried downloading LFD2 demo on Xbox live and same old problem - stop - start- crawl - stop - start ect - so no change there.Thinking of going back to the 20 mb connection & my old router which worked perfect. If anyone can think of anything else i can do please let me know.

merlintt
22-06-2010, 17:05
I tried downloading the crackdown demo last night and had no problem,although i still have people spawning with no weapon on my host for gears of war2.

@pixel8ted,if you do downgrade they(vm)leave you with your shiny new(50meg) modem!

I know next to zero about ip adresses,pc`s,tcp icp blah blah blah.What I do know is that these problems never appeared on my 20meg-until i downgraded from 50 meg and got left with the 50meg modem.

Could it be something to do with the 50meg modem?

Pixel8ted
01-07-2010, 15:32
I tried downloading the crackdown demo last night and had no problem,although i still have people spawning with no weapon on my host for gears of war2.

@pixel8ted,if you do downgrade they(vm)leave you with your shiny new(50meg) modem!

I know next to zero about ip adresses,pc`s,tcp icp blah blah blah.What I do know is that these problems never appeared on my 20meg-until i downgraded from 50 meg and got left with the 50meg modem.

Could it be something to do with the 50meg modem?

The technician siad he couldn't fix my problem & still having problems hosting on live on MW2 & frequent disconnects.I too had no problem with my 20 mb line so i may downgrade
back like yourself Merlinn

andymckay2001
01-07-2010, 21:45
My 50mb has been running fine up until about a week ago. I'm getting very flaky connections at the mo (Stretford) did a speedtest before on the usual test sites and got

https://www.cableforum.co.uk/images/local/2010/07/29.png (http://www.speedtest.net)

Thats surprisingly fast at the mo. At 3 this afternoon I was down to 6mbps.

Gonna leave it for a couple more days and if no improvement a technicians call will be in order. I mean I could pay BT for up to 8mb broadband if I wanted that!!!!!!!

edit. Just done another test on broadband speed checker and over the test I went from 16Mb/s down to 1 Mb/s and then back to 8Mb/s....Whats going on????????

merlintt
01-09-2010, 13:03
The problem of the demo downloads freezing from xbox live hasn`t happened to me for a couple of weeks now:D.The problem seemed to disappear around about the time the modem firmware was updated,no idea if this is just coincidental.