Large drop in connection speed
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- Re: Large drop in connection speed
Large drop in connection speed
15-05-2020 8:30 AM
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Not sure what is exactly is going on, but I'm experiencing a substantial deterioration in my internet connection overnight. Is there maintenance being done at the local exchange? I do not see any issue with the stability of my connection from my modem to the street cabinet or any internal DSL errors in my routers logs. I have recently been using my connection to connect to work and this is going to be an issue going forward.
Re: Large drop in connection speed
15-05-2020 9:07 AM
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Welcome to the Community, @UK_yankee . First question, what does your DSL connection details screen show? - this may give us an idea where the problem lies.
Re: Large drop in connection speed
15-05-2020 10:02 AM
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Not positive what you mean by DSL connection details screen, but I would guess that you are interested in the DSL status and Line status. Here is that screen.
Re: Large drop in connection speed
15-05-2020 10:50 AM
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You guessed correctly what I meant - different routers call them different things 😉
From that picture, I suspect there is a problem somewhere - your up time is only 2.1/4 hours, your downstream SNR margin is too low for your reported attenuation and you therefore are being throttled.
Next, and I should have put these in my original post - have you done a quiet line test on your landline (dial 17070 select option 2) and what do your event logs show, please?
Re: Large drop in connection speed
15-05-2020 11:07 AM
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I have not done any "quiet test" as I have never used the telephone connection while living in the UK. I would actually have to borrow a phone from my neighbors as I don't own one.
System Log???
May 5 05:06:17 WAN Connection: WAN was restored.
May 5 05:06:18 ntp: start NTP update
May 15 06:34:43 rc_service: ntp 732:notify_rc restart_diskmon
May 15 06:34:43 disk_monitor: Finish
May 15 06:34:46 disk monitor: be idle
May 15 06:34:46 vpnserver1[781]: OpenVPN 2.4.7 arm-unknown-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD] built on Dec 12 2019
May 15 06:34:46 vpnserver1[781]: library versions: OpenSSL 1.0.2t 10 Sep 2019, LZO 2.03
May 15 06:34:46 vpnserver1[782]: NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
May 15 06:34:46 vpnserver1[782]: PLUGIN_INIT: POST /usr/lib/openvpn-plugin-auth-pam.so '[/usr/lib/openvpn-plugin-auth-pam.so] [openvpn]' intercepted=PLUGIN_AUTH_USER_PASS_VERIFY
May 15 06:34:46 vpnserver1[782]: Diffie-Hellman initialized with 2048 bit key
May 15 06:34:46 vpnserver1[782]: TUN/TAP device tun21 opened
May 15 06:34:46 vpnserver1[782]: TUN/TAP TX queue length set to 100
May 15 06:34:46 vpnserver1[782]: /sbin/ifconfig tun21 10.8.0.1 pointopoint 10.8.0.2 mtu 1500
May 15 06:34:46 vpnserver1[782]: /etc/openvpn/ovpn-up tun21 1500 1622 10.8.0.1 10.8.0.2 init
May 15 06:34:46 vpnserver1[782]: /sbin/route add -net 10.8.0.0 netmask 255.255.255.0 gw 10.8.0.2
May 15 06:34:46 vpnserver1[782]: Socket Buffers: R=[122880->122880] S=[122880->122880]
May 15 06:34:46 vpnserver1[782]: UDPv4 link local (bound): [AF_INET][undef]:32550
May 15 06:34:46 vpnserver1[782]: UDPv4 link remote: [AF_UNSPEC]
May 15 06:34:46 vpnserver1[782]: MULTI: multi_init called, r=256 v=256
May 15 06:34:46 vpnserver1[782]: IFCONFIG POOL: base=10.8.0.4 size=62, ipv6=0
May 15 06:34:46 vpnserver1[782]: Initialization Sequence Completed
May 15 06:35:26 crond[250]: time disparity of 1067129 minutes detected
May 15 06:37:37 syslog: wlceventd_proc_event(495): eth2: Auth F8:16:54:22:2B:53, status: Successful (0)
May 15 06:37:37 syslog: wlceventd_proc_event(524): eth2: Assoc F8:16:54:22:2B:53, status: Successful (0)
May 15 06:38:08 syslog: wlceventd_proc_event(495): eth2: Auth F4:F5:E8:50:4B:97, status: Successful (0)
May 15 06:38:08 syslog: wlceventd_proc_event(505): eth2: ReAssoc F4:F5:E8:50:4B:97, status: Successful (0)
May 15 06:48:35 acsd: selected channel spec: 0x100a (10)
May 15 06:48:35 acsd: Adjusted channel spec: 0x100a (10)
May 15 06:48:35 acsd: selected channel spec: 0x100a (10)
May 15 06:48:35 acsd: acs_set_chspec: 0x100a (10) for reason APCS_CSTIMER
May 15 07:00:46 disk_monitor: Got SIGALRM...
May 15 07:03:39 acsd: selected channel spec: 0x1001 (1)
May 15 07:03:39 acsd: Adjusted channel spec: 0x1001 (1)
May 15 07:03:39 acsd: selected channel spec: 0x1001 (1)
May 15 07:03:39 acsd: acs_set_chspec: 0x1001 (1) for reason APCS_CSTIMER
May 15 07:18:43 acsd: selected channel spec: 0x1001 (1)
May 15 07:18:43 acsd: Adjusted channel spec: 0x1001 (1)
May 15 07:18:43 acsd: selected channel spec: 0x1001 (1)
May 15 07:18:43 acsd: acs_set_chspec: 0x1001 (1) for reason APCS_CSTIMER
May 15 07:33:47 acsd: selected channel spec: 0x1001 (1)
May 15 07:33:47 acsd: Adjusted channel spec: 0x1001 (1)
May 15 07:33:47 acsd: selected channel spec: 0x1001 (1)
May 15 07:33:47 acsd: acs_set_chspec: 0x1001 (1) for reason APCS_CSTIMER
May 15 07:37:05 syslog: wlceventd_proc_event(495): eth1: Auth D4:25:8B:8F:FA:A2, status: Successful (0)
May 15 07:37:05 syslog: wlceventd_proc_event(524): eth1: Assoc D4:25:8B:8F:FA:A2, status: Successful (0)
Re: Large drop in connection speed
15-05-2020 11:24 AM
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I would suggest you did borrow that phone from a neighbour if possible. I assume you leave the modem/router switched on and connected at all times?
No idea what router you are using, but I assume you are running Linux and a VPN - nothing in that log is standing out as a disconnection to the wider network to me,(TBH a lot of it it is meaningless to me), but the previous post did only show a connection time of 2.1/4 hours, so there must have been a drop very early in the morning.
Re: Large drop in connection speed
15-05-2020 11:25 AM
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It seems that my connection was fine up until yesterday evening or overnight. As you can see from my speed test yesterday at roughly 2pm, my connection was fairly normal. Some thing changed from 2pm to 6am this morning that had nothing to do with any of my actions. There was a Openreach worker here on the pole next to the house yesterday working on some issue, not mine. When I expressed my concern to him about his work impacting my internet connection, he said not to worry because he wasn't working on that, whatever that means. I didn't notice any issue last night, but I also just read a book and didn't use the internet that much. Are the two connected, I have no idea, I just want a stable decent internet connection.
Re: Large drop in connection speed
15-05-2020 11:33 AM
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Yeah, your speed tests in the original post did look healthy up to yesterday, but something has definitely caused a catastrophic drop.
I don't suppose you have any historical versions of those stats pages you posted, for comparison?
Unlikely, but it is just possible that the OR engineer could have disturbed something, although that would normally show up almost instantly, and not early in the morning after.
Re: Large drop in connection speed
15-05-2020 11:55 AM
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I called support and they tested the line and said there is fault outside my house. Told them about Openreach working on the pole next to my house and they said Openreach probably messed up your connection. A ticket was submitted.
Re: Large drop in connection speed
15-05-2020 11:59 AM
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OK - as you have succeeded in contacting support, I'll leave it up to them - one less thing for me to watch on here 😉 - but please let us know the outcome.
Re: Large drop in connection speed
15-05-2020 12:10 PM
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Will do.
Re: Large drop in connection speed
16-05-2020 9:44 AM
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So I have an update. Yesterday an Openreach tech showed up at my house while I was outside. I talked to the tech and he told me that he was not there for my issue, but did ask what my issue was. I explained how my internet connection became unstable the previous afternoon after another Openreach tech was seen working on the pole next to my house. After looking at the wiring, the tech told me two other people had called in issues with their connections and he said he thought he found the faults. He finished up and told me that he needed to test the connection at the street cabinet. While at the cabinet he called to tell me that he believed fault was fixed but would be running some tests to confirm and I might temporarily lose my connection.
As of this morning my connection is slowly ramping back up to its previous levels. This is to be expected for any DSL connection as tries to establish stability in the connection after the hardware is reset. I do not know who the tech was, but I appreciate his thoroughness and professionalism he displayed on the job.
Re: Large drop in connection speed
16-05-2020 10:31 AM
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Good to hear you caught a approachable engineer. From my experience, they outnumber their 'jobsworth' colleagues, and will go the extra mile if they have the time.
Keep your eyes on the connection, and I wouldn't cancel your scheduled engineer - when is he due, btw?
Re: Large drop in connection speed
16-05-2020 3:18 PM
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Not really sure since it says in the open question page the "issue is on hold until May 20" I can say that my speed test results are very close to where it was before this all started, so I'm pleased about that. I'll keep a log of the stats, but don't expect any issues electronically. I just need to the pretend techs away from the box.
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