Unfortunately the problem continues and happens at any time of the day, it appears. It is both Netflix freezing (always returning to 25% exactly when it tries to reload) and also problems with iPlayer freezing. It can happen at any time in the programme/film - sometimes ner the beginning, sometimes in the middle, sometimes near the end - no set pattern.
It is really irritating! The only temporary solution appears to be to reset the TiVo box - which takes quite a while (and obviously should not be needed). Sometimes I've given up and watched on laptop instead - but not so good when there are several of us watching!
I do hope you will find a way to remedy this very soon as I am not happy paying my monthly bills while I am having repeated problems with the service.