SNR Margin high and very slow speed

[#1]

Hello, hope you can help.  Yesterday evening my broadband started to drop frequently, it would connect then disconnect every minute.  It did this for hours.  I'm on very old ADSL 1 technology but my line is normally quite stable.

I woke up this morning to find the speed had dropped to around 2mbps which is almost unusable, with a SNR margin of 24.6.  Normally this would be around 6db.

I was tempted to reset the router again tonight; however I didn't want to make things worse so BT thought I had another line drop.

Is it possible someone could look into this and maybe do a DLM reset for me, as I don't really want to go through the weekend with such slow speeds and wait for the line profile to recover (up to 72 hours if I'm correct)?

Many thanks!

[#2]

@GarryB62 With an SNR figure as high as that, I sincerely doubt a 'DLM reset' will sort it. I suggest you follow the below:

First thing to check: Is your phoneline clear? Dial 17070 (preferably from a corded phone), select option 2. Once your phone number is confirmed, there should be silence on the line except for the regular 'Quiet Line Test' message - any other noise, report a PHONE problem via: https://www.plus.net/help/report-a-problem/phone/

If the phone test passes, report a broadband problem via: https://www.plus.net/help/report-a-problem/broadband/

Let us know the result - if the tests come back as clear but you still have a problem, we need to investigate further.

The above assumes you still have 'normal' landline connection - if you have a SOGEA (internet only) one, just use the second link to report a network issue.