I have never used wifi on a VM Hub !
Assuming your wired connections are all ok, then getting your own wireless equipment will solve any wifi issues permanently, and will be transferable to other BB suppliers kit should you move supplier.
Get either.....
(1) A Mesh System, (2) A Wireless router, (3) A Wireless access point or (4) A combination of (2) & (3).
--------------------
John
--------------------
I do not work for VM. My 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 +2 Airport Express's. On VIVID200, Talk Anytime Phone, x2 Mobile SIM only iPhones.