You can leave VM for free if you are still in the first 14 days post-connection, cooling off period.
For any urgent immediate work just get a 10/20/50 meter run of Cat5e/6 ethernet cable and lay it over carpet/up stairs etc and plug the PC directly into the Hub for the duration of that work - then unplug it and put it away in the bits drawer until next time.
Re the wifi - I will assume its a wifi only issue - if so see this...
If it is a wifi only issue, then on a Hub3/4/5, you can try separating the SSID's of the 2.4 and 5 GHz wifi bands by renaming them in the settings and at the same time switch off "channel optimisation/Smart wifi” “ apply and save the settings. All wifi devices will need reconnecting to the best SSID at each location. Also use a wifi scanning App to find the best wifi channels to use (just select and use channels 1,6,11 on 2.4GHz) - this often helps Hub users get better wifi performance - but its still no substitute for getting better kit 🙂
To address the wifi issues, VM now supply “wifi Pods” (no longer doing cheap and cheerless “boosters”). However, their Pods are only free to customers on the 1GB, Ultimate Oomph or Volt packages - is that you? If so they are worth trying - they should work for you.
You do have to call in to order them (cant do it online) - or just wait here for a VM person to respond in a day or two and they will sort the first one for you .
If not free… you will be charged £5/month (note - BT charge £10/mo for their whole home wifi solution). It’s a simple solution and should work for you. However, you would soon pay off that cost by buying your own wireless solution that will be yours to own and use forever, but it isn’t the simple plug and play option of the Pod(s).
You would need to get either a… (1) Mesh System, (2) Wireless router, (3) Wireless access point (4) Powerline adapters (+/- inbuilt Wifi,) (5) A combination of (2,3,4).
£40-100 should sort it forever for most customers with an average property and usage.
I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.