It's a shame as I've now concluded that the only way to make this setup work properly is to purchase a new router to sit between the Virgin Hub 3 and the WHW Premium, flick the Hub 3 into Modem Mode and boom, all issues with dropping out and problems solved.
Already worked-around, can't be bothered with waiting (for weeks) for the next update, can even be a cheap router with Gigabit ethernet, job done. WHW Premium kit working amazingly now, couldn't be happier with it.
It's only fair to provide a progress update. I'm pleased to report that other than a couple of restarts following the firmware upgrade, things seemed to have settled a little. I haven't had any loss of internet (red light) via virgin 3.0 hub for a couple of days and formerly I required at least one hub or network reboot per day. Fingers crossed on maintaining the current stability.
My next challenge is to connect my NAS drive to the WHP via ethernet. Should be a simple task but it was pretty unstable previously. It's an old Buffalo link stations. Does anyone have any first hand experience?
I recently updated firmware a few days ago and apart from a few red discs losing connection and a few re starts things have settled.
when I log into web app and go to devices I can see my 4 discs, Kitchen, lounge, bedroom 1, bedroom 2 etc.. but can also see three other discs listed with no IP address or devices connected..
wifi Disc 36
wifi disc 56
wifi disc 30
Is this normal?