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smithyg
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Message 1 of 19

Slowing connection speed re: evening performance problems / Internet dropouts

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Hi.  Is it possible to force my broadband connection speed not to exceed a fixed limiit of (say) 6 Mbps ?

 

My evening/night time connection problems returned yesterday evening and I now have seen enough to believe that it occurs when the connection speed is around 8 Mbps but when around 6 - 7 Mbps there is no problem in the evenings / nights.

 

(In more detail: after the engineer came a few weeks ago and replaced part of the socket and checked everying out, a day later the speed dropped from around 8 Mbps to exactly 6 Mbps and the connection was fine in the evenings / nights again.  Over the past couple of weeks, it has slowly  been creeping back up again and went over 8 Mbps and whoosh - evenings / nights stopped working.  Today I installed a newly received Home Hub 4 which worked this afternoon at slightly over 8 Mbps until around 16:30, then the Internet connection started dropping and re-connecting, first for around 5 minutes and gradually longer, but the service even when it was connected was unusable.  HOWEVER, an hour or so ago I forced a further reboot on the Home Hub and it then connected at the lower speed of 7.128 Mbps and here I am again back online in the evening.)

 

Thanks,

Graham.

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Keith_Beddoe
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Message 2 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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Its possible that the noise margin is dropping in the evening, which is causing the disconnections.

 

Unfortunately the home hub 4 does not give an updating display of the noise margin, only an event in the event log, when the line disconnects, so its not going to be possible to tell if that is causing the problem.

 

Which home hub or router were you using, before you received the home hub 4?

 

Is this is a continuation of your existing thread https://community.bt.com/t5/ADSL-Copper-Broadband-Speed/ADSL-fully-working-during-the-daytime-but-un...

 

 

smithyg
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Message 3 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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Hello Keith and thank you for your reply.

 

I take it that BT is not able to fix an upper limit on the connection speed 😞  I'd rather have a 6 Mbps connection 24 hours a day than an 8 Mbps connection for 10 hours a day.

 

[1] I had thought the other incident closed (as of course did BT & BT Open Reach) and also as I was asking a different question, it would be more appropriate to open a new thread; apologies if this was inappropriate.

 

[2] I have been using a 3rd party (Netgear) router for over a decade.  During the previous support calls with BT and before the messages here and the engineer visit, I set up my Home Hub 1.  After the problem went away, I reinstated the Netgear router, which was in use when the problem recurred on Monday.  As the Home Hub 4 arrived on the day after that, I set it up in the afternoon (its arrival was coincidental as I got it as part of a new fixed-term contract).

All 3 routers exhibit the same problem in the evenings & night time with minor differences:

- the Netgear stays connected but the speed is unusable.

- the Home Hub 1 just cycles round connecting for a few seconds, then disconnecting & re-connecting until it locks up.

- the Home Hub 4 yesterday showed the "ADSL Line Status" / "Connection Time" as unbroken but showed the
"Internet Connection Configuration" / "Connection Time" as periods varying from around 5 minutes gradually getting longer during the evening, although at all times the connection was pretty much unusable.

 

[3] Oddly (to me), at around 03:55 this morning, the "ADSL Line Status" / "Conncection Time" and
"Internet Connection Configuration" / "Connection Time" both reset to zero and the connection speed has gone down to 6.168 Mbps (I was asleep at the time and there was no power outage here).

 

I can re-instate any of the routers but am reluctant to plug in the Home Hub 1 because apparently from the logs it got logged-into remotely, whether this was a hacker or the BT infrastructure, I don't know, but a router that has a default admin password AND allows WAN logins by default is a worrying device.

 

Thanks,

Graham.

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Keith_Beddoe
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Message 4 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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What you need to look at is the downstream noise margin to see if its dropping below 6dB.

 

Not sure if the Netgear shows that, but I do know the home hub 1 does, as I used one for many years.

Never had any hacking issues with it.

 

The HH1 also shows CRC errors, which is a good indication of problems, as high CRC errors will force a re-connection.

It also shows whether the latency is fast, or interleaved.

 

 

smithyg
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Message 5 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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Thanks for the reply.  I will try and change the Home Hub 1 admin password without the telephone line connected, although my previous experience was that the Home Hub 1 would not allow a computer to access it while it was repeatedly trying to connect the broadband.

 

Thanks,

Graham.

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Keith_Beddoe
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Message 6 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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Its very unlikely anyone is going to bother trying to access it. I did quite a few checks with my home hub 1, and it was not possible to access it over the WAN, on version 6.2.2.6 upward.

 

Keith_Beddoe
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Message 7 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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This is what I used to get when I had a home hub 1. I have marked the values of interest.

Home hub 1 error information

 

I no longer use a BT Home hub of any sort.

 

smithyg
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Message 8 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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Hi Keith and thank you for the information on the Home Hub 1; I will attend to this.

 

(I would never have plugged in the Home Hub 1 but it was pointed out to me by the BT Helpdesk staff that using a 3rd party router was inhibiting some of their tests and risked an engineer replacing the router and charging me for it.  The Netgear is an ancient, non-WiFi device but has served me well.)

 

Regards,

Graham.

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Keith_Beddoe
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Message 9 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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smithyg wrote: but it was pointed out to me by the BT Helpdesk staff that using a 3rd party router was inhibiting some of their tests and risked an engineer replacing the router and charging me for it. 

What a load of rubbish. All they can see is the line test results and the link status, anything else would have to second line support.

You can use whichever router you like, but BT only support the home hubs, because they can easily be reset to a known factory state, which is one of the first things they will ask.

 

smithyg
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Message 10 of 19

Re: Slowing connection speed re: evening performance problems / Internet dropouts

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In the meantime, I found this section of the log "interesting" and is at the time the connection was reset without my intervention:

 

03:55:01, 03 Jan.    (17786.650000) CWMP: session completed successfully
03:55:01, 03 Jan.    (17786.440000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
03:54:51, 03 Jan.    (17776.580000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
03:54:51, 03 Jan.    (17776.570000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
03:54:46, 03 Jan.    (17771.560000) PPP IPCP Receive Configuration ACK
03:54:46, 03 Jan.    (17771.440000) PPP IPCP Send Configuration ACK
03:54:46, 03 Jan.    (17771.440000) PPP IPCP Receive Configuration Request
03:54:46, 03 Jan.    (17771.320000) PPP IPCP Send Configuration Request
03:54:46, 03 Jan.    (17771.320000) PPP IPCP Receive Configuration NAK
03:54:45, 03 Jan.    (17770.760000) PPP IPCP Send Configuration ACK
03:54:45, 03 Jan.    (17770.760000) PPP IPCP Receive Configuration Request
03:54:43, 03 Jan.    (17768.320000) PPP IPCP Send Configuration Request
03:54:43, 03 Jan.    (17768.320000) WAN operating mode is DSL
03:54:43, 03 Jan.    (17768.320000) Last WAN operating mode was DSL
03:54:41, 03 Jan.    (17766.440000) PPPoA is up -​ VPI: 0, VCI:38
03:54:41, 03 Jan.    (17766.420000) CHAP authentication successful
03:54:41, 03 Jan.    (17766.360000) CHAP Receive Challenge
03:54:41, 03 Jan.    (17766.350000) Starting CHAP authentication with peer
03:54:41, 03 Jan.    (17766.350000) PPP LCP Send Configuration ACK
03:54:41, 03 Jan.    (17766.340000) PPP LCP Receive Configuration Request
03:54:38, 03 Jan.    (17763.770000) PPP LCP Receive Configuration ACK
03:54:38, 03 Jan.    (17763.750000) PPP LCP Send Configuration Request
03:54:38, 03 Jan.    (17763.750000) PPP LCP Receive Configuration Reject
03:54:38, 03 Jan.    (17763.530000) PPP LCP Send Configuration Request
03:54:37, 03 Jan.    (17763.100000) CWMP: session closed due to error: Could not resolve host
03:54:37, 03 Jan.    (17762.870000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
03:54:37, 03 Jan.    (17762.860000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
03:54:34, 03 Jan.    (17759.990000) ETHoA is up -​ VPI: 0, VCI:35
03:54:34, 03 Jan.    (17759.990000) DSL is up
03:54:33, 03 Jan.    (17758.530000) DSL noise margin: 5.60 dB upstream, 9.10 dB downstream
03:54:32, 03 Jan.    (17757.610000) DSL line rate: 612 Kbps upstream, 6168 Kbps downstream
03:54:06, 03 Jan.    (17731.470000) CWMP: session closed due to error: Could not resolve host
03:54:06, 03 Jan.    (17731.360000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
03:54:06, 03 Jan.    (17731.360000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
03:54:05, 03 Jan.    (17730.790000) CWMP: Initializing transaction for event code 4 VALUE CHANGE
03:54:03, 03 Jan.    (17728.430000) DSL is down after 293 minutes uptime
03:54:03, 03 Jan.    (17728.430000) ETHoA is down after 293 minutes uptime
03:54:02, 03 Jan.    (17728.020000) PPPoA is down after 293 minutes uptime [Waiting for Underlying Connection (WAN DSL -​ Up)]
03:53:59, 03 Jan.    (17724.830000) PPP LCP Send Termination Request [User request]
03:53:28, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [103.207.37.11]:50921-​>[81.152.237.57]:22 on ppp0)
03:47:59, 03 Jan.    IN: BLOCK [16] Remote administration (UDP [184.105.139.67]:64007-​>[81.152.237.57]:161 on ppp0)
03:39:49, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [223.68.134.29]:63884-​>[81.152.237.57]:22 on ppp0)
03:39:29, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [23.110.54.178]:61458-​>[81.152.237.57]:22 on ppp0)
03:38:00, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [117.200.162.136]:3935-​>[81.152.237.57]:22 on ppp0)
03:35:26, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [182.112.250.169]:12556-​>[81.152.237.57]:22 on ppp0)
03:34:35, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [113.195.145.80]:47235-​>[81.152.237.57]:22 on ppp0)
03:32:37, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [190.50.204.146]:6451-​>[81.152.237.57]:22 on ppp0)
03:27:12, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [45.63.119.233]:40130-​>[81.152.237.57]:22 on ppp0)
03:07:56, 03 Jan.    BLOCKED 2 more packets (because of ICMP replay)
03:07:55, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>40.77.229.14 on ppp0)
03:07:37, 03 Jan.    BLOCKED 2 more packets (because of ICMP replay)
03:07:36, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>40.77.229.43 on ppp0)
03:00:12, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [186.62.103.73]:49905-​>[81.152.237.57]:22 on ppp0)
02:43:38, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [58.218.205.102]:9090-​>[81.152.237.57]:22 on ppp0)
02:40:52, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [112.217.150.112]:62119-​>[81.152.237.57]:22 on ppp0)
02:40:29, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [181.162.253.156]:8305-​>[81.152.237.57]:22 on ppp0)
02:16:10, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [77.72.82.11]:46462-​>[81.152.237.57]:22 on ppp0)
02:15:43, 03 Jan.    IN: BLOCK [16] Remote administration (TCP [221.15.147.234]:45247-​>[81.152.237.57]:22 on ppp0)
02:09:23, 03 Jan.    BLOCKED 2 more packets (because of ICMP replay)
02:09:22, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>109.144.5.177 on ppp0)
02:09:14, 03 Jan.    BLOCKED 2 more packets (because of ICMP replay)
02:09:13, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>109.144.5.177 on ppp0)
02:09:03, 03 Jan.    BLOCKED 2 more packets (because of ICMP replay)
02:09:02, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>109.144.5.192 on ppp0)
02:08:43, 03 Jan.    BLOCKED 3 more packets (because of ICMP replay)
02:08:42, 03 Jan.    OUT: BLOCK [7] ICMP replay (ICMP type 3 code 1 81.152.237.57-​>109.144.5.192 on ppp0)
02:08:39, 03 Jan.    BLOCKED 5 more packets (because of ICMP replay)
        
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BT Home Hub 4 (Type A) | Software version 4.7.5.1.83.8.130.1.32 | Last updated 02/11/16

 

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