I've previously had fairly regular dropouts at about the same time each evening and reported them.
No faults were found, so I tolerated these for much of last year.
Performance, otherwise, was as good as I can get with Down ~22mbps, S/N ~6.2 : Up ~10mbps, S/N ~6.5, and ping of ~8 msecs. Then a couple of weeks ago, my BB started dropping several times each evening and also during the day.
Connection speeds have dropped and ping increased. Nothing had changed in the house - cause must be external?
I tried the usual things of rebooting & resetting the router - made no difference.
I've now moved the router right next to the BT master socket and redone all the connections (twice).
Down is now ~18mbps, S/N 6.0 : Up ~5mbps, S/N 9.5 & ping ~30ms.
Even tried connecting directly to the incoming BT line - missing out the phone filter seemed to make no difference.
Does anyone know what's happened and what I should do ?