Do a pinhole reset of the Hub to factory settings. Push in the pin on the back/side/bottom of the Hub with the end of a paperclip until you feel it at the “stop point” and hold for a "timed" 60 seconds do NOT restart the router after that. Your passwords/passphrase for both Hub and Wifi will revert to those printed on the Hub sticker on its base/side/drawer.
-------------------- Services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired 2 WiFi,) SH2 in modem mode with Airport Extreme Router. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.
I’ve had the same problems with these hubs I now just use them in modem mode and use a unifi backbone in my experience these hubs can’t handle anything above the average user once you start adding Alexa’s, sonos, security they crap out out and there WiFi is terrible my advise is to get unifi gear here’s what I got of eBay
unfi gateway £70
unfi aplr (accesspoint long range 100m range I have full WiFi inside and outside my house) £78
unifi 8 port hub £90
this stuff is enterprise gear and never fails even when my hub is out like now my internal network is working flawlessly.
i’m also looking into just using 4g for my internet it’s cheaper to get an unlimited sim and it’s more reliable and faster than broadband at the moment thats what I’m having to do now running my whole house through my iPhone as my super fast super reliable broadband is down until the 13th of Feb.