Still having the same problem even tethered to my phoneso we've established that the V8s works on Ethernet but not wifi. Can you use your phone to tether to try another isp?
Will give this a bash, cheers!There's an option of homeplugs that's been mentioned. But that means laying out £25 or so. A cheaper option could be a plug in wifi booster that has an Ethernet port. They're about £8 off eBay. Plug it in by your box, link it to home wifi and connect Ethernet. Change box settings from wifi to Ethernet.
I've used these on openboxes without issue.
https://www.ebay.co.uk/itm/252481287727