My broadband speeds have taken on a definite pattern over the past few days, dropping from a pretty constant 160Mbps down to a very poor 25Mbps at around 20:00 (just when I’m in most need), going back to 160Mpbs at 02:00 (when I'm not...).
I can be fairly certain of these speeds as I’m signed up to the SamKnows / OFCOM monitoring service and can see these patterns in the data (as in, this is not a localised WiFi connectivity problem).
I have restarted my router a number of times but the pattern continues.
Possibly (almost certainly?) related, I had a letter a few weeks ago telling me of planned network maintenance on 16th March and that my broadband would be unavailable as a result. As it turns out the outage didn't impact my day and it all came back pretty quickly, but I have been left with this issue.
Is anyone out there able to shed some light on why this is happening and what can be done to fix it?