Big speed drop 5 days ago - can anybody from Plusnet help?

[#1]

Hi there - Our speeds dropped from the usual 26Mbps down to 4Mbps on Sunday, and have remained there since.  I've gone through the troubleshooter and logged a question (212135349), but not resolved as yet.  Can anybody help with this?

The last time this happened, I think the connection just needed a prod to get the sync speed back up to normal.

Cheers - Mark

[#2]

Sorry - just read the pinned post.

I’ve tried connecting a computer to the router via Ethernet and same speed problem. The router is plugged directly into the master phone socket.