topic Re: Internet speed has gone down two days on the trot! in Broadband

Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 08:26:10 GMT

Hi, my internet is not the fastest where I am, but I usually maintain a steady 20mb download. Tuesday morning around 2am, there was some activity on my router log, and the speed went down to 18mb. Then this morning at 2am, same again, this time down to 16.5mb!

03.08.2022 02:40:04	Info	XDSL	VDSL connectivity is up port 1
03.08.2022 01:58:24	Info	XDSL	VDSL connectivity is down port 1

Last time this happened, I think the profile was reset (I think). Can I have my minimum of 20mb back please?

Re: Internet speed has gone down two days on the trot!

Karl-TalkTalk — Wed, 03 Aug 2022 08:59:05 GMT

All usual tests on your line are clear and no issues are showing.

Can you power off the router for 30 minutes to allow a new session to start then we can see if the profile will increase over the next 48hrs.

Thanks

Karl.

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 09:54:35 GMT

Hi Karl, thanks for the reply. OK, the router has been powered off and unplugged for 45 minutes, it's just come back up again now, download speed is still only 16.5.

Re: Internet speed has gone down two days on the trot!

Karl-TalkTalk — Wed, 03 Aug 2022 09:55:51 GMT

This will start a new session with the exchange, and we can see if DLM will start to raise the profile back up.

Karl.

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 19:29:51 GMT

My internet is totally down now! Orange light flashing on router for ages (hours)!

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Wed, 03 Aug 2022 19:49:40 GMT

Hi @jwatson,

It would be worth going to the Service Centre to run a connection test on your line, this will indicate if there is currently a fault affecting your service. You can also access this from the ‘My Account’ site.

Also, if you have a landline phone can you check to see if that is working normally (i.e. you have a clear dial tone and no noise on the line).

If your master phone socket has a test socket then you could also try the router in there (via a microfilter), that would then eliminate any of the phone wiring in your home as being a possible cause of the problem.

The TalkTalk Support Team on this community will be able to help, they will hopefully be able to respond to this post tomorrow.

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 19:55:16 GMT

Yes, the online tools say all is OK! The cable comes into my window, and that's it, so no cableing involved!

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Wed, 03 Aug 2022 20:05:24 GMT

If the master phone socket has a test socket it would still be worth testing the router in there, as sometimes the socket faceplate can develop faults, so trying the router in the test socket will eliminate that as a possibility.

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 20:09:08 GMT

OK, it's finally come back up, hours later... but still very slow, 16.5mb download!

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Wed, 03 Aug 2022 20:12:37 GMT

Is that using the test socket, or just in the regular socket ?

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 20:31:33 GMT

I have used both! The cable comes in through a window, which is where the socket is, I have no extensions! I live in a small bungalow!

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Wed, 03 Aug 2022 20:41:34 GMT

ok, I was just trying to understand if it was working in the test socket, but not in the regular faceplate socket, but if you are getting it intermittently working in either of the sockets then that probably proves it is not the socket itself that has the fault.

The team here will be able to run some more tests tomorrow to try to get to the bottom of this.

Re: Internet speed has gone down two days on the trot!

jwatson — Wed, 03 Aug 2022 20:49:42 GMT

OK thanks, it will be interesting to see what happens around 2am tomorrow, as the speed has de-creased each day around that time!

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Wed, 03 Aug 2022 21:07:31 GMT

Yeah, the Openreach Dynamic Line Management (DLM) system monitors your connection for each 24 hour period. If it sees problems (i.e. lots of disconnections, or lots of errors in data transmission on the line) then it will make an adjustment to your line profile, this will happen in the early hours of the morning and will cause your router to drops and reconnect. So it is likely DLM is seeing a problem with the quality of your connection and is tweaking your speed down each day to try to give you a more stable connection.

Once the issue is fixed DLM would then increase your speeds again.

If you check your router stats and look at the value that is called something like 'noise margin', or 'noise safety coefficient' (or similar) then this can often be an indication of DLM adjusting your profile, the normal 'target' value for a VDSL connection is 6dB, DLM will often increase that in steps of 3dB when it wants to slow your connection down, so a value that is quite a bit higher than 6, and especially if it is around 9, 12 or 15 can often be a sign that DLM has been having a tweak !.

Re: Internet speed has gone down two days on the trot!

jwatson — Thu, 04 Aug 2022 14:13:05 GMT

Nothing has changed, still only getting 16.5 download.... did you run any tests to try to get to the bottom of this?

Thanks.

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Thu, 04 Aug 2022 16:12:28 GMT

Hi @jwatson,

Unfortunately it doesn't look like the support team have been able to pick this up today, I'll escalate this thread for their attention to see if they can respond tomorrow. Are you still getting drops of connection, or is it staying connected, but just much slower than normal ?

Re: Internet speed has gone down two days on the trot!

jwatson — Thu, 04 Aug 2022 16:57:05 GMT

It's stuck at 16.5. However, BT Openreach have been out this afternoon to the pole outside my door, apparently YouFibre chopped some cables by mistake, so BT have been sorting it. They said speeds should pick up, and said to request a DLM reset, as it should pick up better speeds. Don't know if that can be done?

Thanks

Re: Internet speed has gone down two days on the trot!

Skynet_TX — Thu, 04 Aug 2022 17:50:13 GMT

TalkTalk can't perform a DLM reset for VDSL connections, they can only do it for ADSL connections. Openreach are the only people that can do a DLM reset for a VDSL connection, but to be fair, the engineer you spoke to would probably not have known if you have a VDSL or ADSL connection. But it should not be a problem, you would just have to wait a little longer, as DLM will increase your speeds gradually if the fault has indeed now been resolved.

The best thing to do is leave everything alone, and leave your router switched on all the time. Once you have had 2 or 3 full days of good quality connection DLM should then start to increase your speeds again, you would see your routers connection drop and reconnect in the early hours of the morning when it does this, but hopefully this time the speed will be going up rather than down !.

What a DLM reset would do is immediately put your speeds back up to the maximum possible, but without a reset you just have to wait for DLM to notice the improved line quality, and for it to step your speeds back up over several days.

Re: Internet speed has gone down two days on the trot!

jwatson — Thu, 04 Aug 2022 17:56:33 GMT

OK, thanks for your help, fingers crossed! I'm away tomorrow for the weekend, so hopefully when I get back the speeds will have increased.

Thanks

Re: Internet speed has gone down two days on the trot!

jwatson — Fri, 05 Aug 2022 07:19:09 GMT

So this morning, DLM has dropped my speed again, now 14mb! To be honest, it's not fit for purpose as it is! It will soon be zero at this rate!