Unusably slow speed only at certain times of day
On weekday evenings and weekend afternoons the internet is so slow it's practically unusable. It takes web pages minutes to load (some fare better than others - for instance Twitter and Google won't load at all). The weird thing is that speeds come back as normal or at least usable if I can load up a speedtester - yet nothing displays. Makes me think this is some kind of DNS or packet issue?
It's the same on all devices over ethernet and wifi. Have tried all the usual hub resets etc.
The fact this is happening during what would generally be considered "peak" hours makes me think this is Virgin's issue and to do with overcongestion? Any tips or direction as to where I can forward this to Virgin so they can look into it? I've tried the local area fault number and nothing is reported.