Firstly... can we check… are the issues only evident on wifi connections or do you see them at the same times on devices connected on ethernet cables? If you don't know, can you check to help diagnose whether it is just a wifi issue or it could be network connection/Hub related?
And dont connect via powerline adapters they always attenuate speeds - I have a pair and on my 200 Mbps connection they routinely only deliver ~40 Mbps (note not MB/s - they are x8 different). So connect directly on ethernet cable - 10-50m Cat5e cable is less than a tenner - just trail it to the device for the test and then roll it up and put it in your bits drawer
What Hub model is it?
Re VM Wifi 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, Volt (or old Ultimate Oomph) packages - is that you? If so they are worth trying - they should work for you.
You do have to call in to order the first one (cant do it online the website is borked) - or try the web-chat function (that has worked for some) - 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… 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, although the VM Pods should be a simpler option.
You would need to get either a… (1) Mesh System, (2) Wireless router, (3) Wireless access points.
£40-100 should sort it 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.