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Connection dropping frequently

paul_blitz
Rising Star
Posts: 121
Thanks: 32
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Registered: ‎20-07-2016

Connection dropping frequently

I've notice that my line seems to drop several times a week (usually at an inconvenient time - or maybe that's just when I notice it more!!!)

I've just been looking at my router logs, and I'm wondering if my line is also dropping too often:

  • 16:41:28, 17 Sep. (5759488.210000) PTM over DSL is down after 3519 minutes uptime
  • 10:04:18, 21 Sep. (6081251.820000) PTM over DSL is down after 5362 minutes uptime
  • 02:55:00, 23 Sep. (6228290.470000) PTM over DSL is down after 2450 minutes uptime
  • 11:45:01, 25 Sep. (6432889.100000) PTM over DSL is down after 3409 minutes uptime
  • 12:12:53, 25 Sep. (6434561.140000) PTM over DSL is down after 27 minutes uptime
  • 10:00:30, 03 Oct. (7117804.550000) PTM over DSL is down after 11386 minutes uptime
  • 15:42:18, 07 Oct. (7483904.200000) PTM over DSL is down after 6101 minutes uptime

(I chose those lines as they are nice & short!!! more complete logs available if you need them)... so I'm going offline typically every 2 days or so

Also interesting is that over that period the logs have reported a gently increasing line speed

  • 17 Sept: Down Rate=70944Kbps, Up Rate=15273Kbps; SNR Margin Down=3.1dB, Up=6.1dB
  • 7 Oct: Down Rate=71550Kbps, Up Rate=16046Kbps; SNR Margin Down=3.1dB, Up=6.0dB

 

Can someone at PlusNet please check my stats, see if there's any obvious reason?

 

 

Moderators Note: topic title changed

5 REPLIES 5
dvorak
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Re: Connection dropping frequently


Moderators Note


This topic has been split from another thread for better visibility and to keep unrelated issues separate. 

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paul_blitz
Rising Star
Posts: 121
Thanks: 32
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Registered: ‎20-07-2016

Re: Connection dropping frequently

More generally, a question: I appreciate that the line DOES need to occasionally need to re-sync, but (and I'm talking about a line that's been in for several years here) how often should we expect to see the line re-syncing?

paul_blitz
Rising Star
Posts: 121
Thanks: 32
Fixes: 1
Registered: ‎20-07-2016

Re: Connection dropping frequently

@bobpullen - I've seen you doing a bit of digging into peoples line dropping issues: any chance you can comment on mine?

paul_blitz
Rising Star
Posts: 121
Thanks: 32
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Registered: ‎20-07-2016

Re: Connection dropping frequently

So, I've been looking at, and copying, my router logs for the last 2 months, and have details of all re-syncs. 

 

This is a summary:

16:41:28, 17 Sep. (5759488.210000) PTM over DSL is down after 3519 minutes uptime
10:04:18, 21 Sep. (6081251.820000) PTM over DSL is down after 5362 minutes uptime
02:55:00, 23 Sep. (6228290.470000) PTM over DSL is down after 2450 minutes uptime
11:45:01, 25 Sep. (6432889.100000) PTM over DSL is down after 3409 minutes uptime
12:12:53, 25 Sep. (6434561.140000) PTM over DSL is down after 27 minutes uptime
10:00:30, 03 Oct. (7117804.550000) PTM over DSL is down after 11386 minutes uptime
15:42:18, 07 Oct. (7483904.200000) PTM over DSL is down after 6101 minutes uptime
10:10:25, 13 Oct. (7982382.830000) PTM over DSL is down after 8307 minutes uptime
07:40:43, 18 Oct. (8405392.150000) PTM over DSL is down after 7049 minutes uptime
07:45:43, 18 Oct. (8405691.690000) PPPoE is down after 3 minutes uptime [Disconnected]
12:02:56, 26 Oct. (9112312.070000) PTM over DSL is down after 11781 minutes uptime
11:08:42, 03 Nov. (9800243.500000) PTM over DSL is down after 6264 minutes uptime
11:06:13, 10 Nov. (10404883.960000) PTM over DSL is down after 10076 minutes uptime
11:24:26, 11 Nov. (10492374.800000) PTM over DSL is down after 1457 minutes uptime
04:35:42, 16 Nov. (10899842.200000) PTM over DSL is down after 944 minutes uptime

 

So that's 17 resyncs in a 2 month period, so about every 3.5 to 4 days.

 

And, just in case you're interested, each of the above events looks like this:

 

12:52:21, 15 Nov. (10843243.330000) CWMP: session completed successfully
12:52:20, 15 Nov. (10843242.910000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
12:52:12, 15 Nov. (10843234.910000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
12:52:12, 15 Nov. (10843234.910000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
12:52:10, 15 Nov. (10843232.670000) WAN operating mode is VDSL
12:52:10, 15 Nov. (10843232.670000) Last WAN operating mode was VDSL
12:52:08, 15 Nov. (10843231.030000) PPP IPCP Receive Configuration ACK
12:52:08, 15 Nov. (10843230.840000) PPP IPCP Send Configuration Request
12:52:08, 15 Nov. (10843230.830000) PPP IPCP Receive Configuration NAK
12:52:08, 15 Nov. (10843230.830000) PPP IPCP Send Configuration ACK
12:52:08, 15 Nov. (10843230.830000) PPP IPCP Receive Configuration Request
12:52:08, 15 Nov. (10843230.820000) PPP IPCP Send Configuration Request
12:52:07, 15 Nov. (10843229.370000) PPPoE is up -? Down Rate=73221Kbps, Up Rate=16505Kbps; SNR Margin Down=3.1dB, Up=6.0dB
12:52:07, 15 Nov. (10843229.360000) CHAP authentication successful
12:52:07, 15 Nov. (10843229.240000) CHAP Receive Challenge
12:52:07, 15 Nov. (10843229.240000) Starting CHAP authentication with peer
12:52:07, 15 Nov. (10843229.240000) PPP LCP Receive Configuration ACK
12:52:07, 15 Nov. (10843229.230000) PPP LCP Send Configuration ACK
12:52:07, 15 Nov. (10843229.230000) PPP LCP Send Configuration Request
12:52:07, 15 Nov. (10843229.220000) PPP LCP Receive Configuration Request
12:52:07, 15 Nov. (10843229.130000) CHAP Receive Challenge
12:52:07, 15 Nov. (10843229.130000) Starting CHAP authentication with peer
12:52:07, 15 Nov. (10843229.130000) PPP LCP Receive Configuration ACK
12:52:07, 15 Nov. (10843229.120000) PPP LCP Send Configuration Request
12:52:07, 15 Nov. (10843229.120000) PPP LCP Receive Configuration Reject
12:52:07, 15 Nov. (10843229.120000) PPP LCP Send Configuration ACK
12:52:07, 15 Nov. (10843229.120000) PPP LCP Receive Configuration Request
12:52:07, 15 Nov. (10843229.110000) PPP LCP Send Configuration Request
12:51:15, 15 Nov. (10843177.830000) PTM over DSL is up
12:51:13, 15 Nov. (10843175.740000) CWMP: session closed due to error: Could not resolve host
12:51:13, 15 Nov. (10843175.730000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
12:51:13, 15 Nov. (10843175.720000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
12:50:43, 15 Nov. (10843145.350000) CWMP: session closed due to error: Could not resolve host
12:50:43, 15 Nov. (10843145.310000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
12:50:43, 15 Nov. (10843145.310000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
12:50:42, 15 Nov. (10843144.920000) CWMP: Initializing transaction for event code 4 VALUE CHANGE
12:50:40, 15 Nov. (10843142.690000) PTM over DSL is down after 5845 minutes uptime
12:50:40, 15 Nov. (10843142.690000) PPPoE is down after 5844 minutes uptime [Waiting for Underlying Connection (WAN Ethernet 2 -? Down)]
12:50:37, 15 Nov. (10843139.520000) PPP LCP Send Termination Request [User request]

 

 

paul_blitz
Rising Star
Posts: 121
Thanks: 32
Fixes: 1
Registered: ‎20-07-2016

Re: Connection dropping frequently

So, back in December, I was asked by Plusnet Support to plug my router into the test socket: that was easy, as there was no extension wiring connected to the faceplate anyway (it was all connected behind the single ADSL filter), and made no real difference.

I kept a log of my router re-syncs (copied from the router logs), and I was re-syncing on average every 2 to 4 days....  so fed that information back to Plusnet Support.

Had a nice phone call from Plusnet Support earlier today: yes, he agreed, my FTTC broadband should not be re-syncing that often. They had tested my line, and that was fine (BT had re-terminated all my joints about 5 to 10 years ago, after major line issues, so that wasn't a big surprise). So, they will send me a new router (mine is now a few years old) to see if that fixes things.

 

Watch this space!