You want a Tech visit (an engineer deals with bigger matters) and you were speaking to an underpaid offshore customer service advisor (script reader!) not a Techician
🙂One option is to get the connection data from one of the Hubs and see if anything obvious leaps out. Are you able to do that? If so, I can post the instructions if you can get one of the occupants to do it.
Are their low speeds only evident on wifi connections or do they see them at the same times on devices connected on ethernet cables? If you don't know, can you get them to check to help diagnose whether it is just a wifi issue or it really could be a network connection related?
Otherwise a "proper" VM person will respond to this in a day or two and advise
--------------------
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.