The WiFi in the room where my Virgin box etc is is fine, but in other rooms it’s very slow. I’ve tried doing what it says on the virgin site but still slow. Never had this issue with Sky .... any suggestions?
ISP provided Hubs are renowned for their poor Wi-Fi, and at the best of times Wi-Fi is a fickle beast that can be affected by numerous things such as distance from the Hub, building construction, other electronic devices, neighbouring Wi-Fi, basically all sorts.
VM supply to the Hub, after the Hub it is up to you.
Many on here, myself included advocate the use of a third party Gigabit capable Wi-Fi router or Mesh system.