Not sure what's going on here:
550Mbps on Desktop PC - Rock solid, always fast, on the other side of the house to the router, connected via a cheap CCA (Copper Coated Aluminum) Cat6 cable that is about 70m long. Nothing strange here. (I do have a roll of pure copper Cat6 to replace the CCA with at some point to possibly reduce latency a little more)
60-550Mbps on 2x mobile phones and 2x tablets - connected wirelessly (5Ghz), the varying speeds across the house are not always related to how far away from the router the devices are but I've read the Hub3 can have super inconsistent WiFi so I guess that's what's causing the variation. Sometimes you get 550Mbps right next to router and sometimes you get 50Mbps right next to the router.
This is where it gets weird though:
1Mbps - 10Mbps on a 6 year old laptop (2.4GHz) - same results whether wireless (right next to router) or wired (using Virgins supplied Cat6 cable (yellow and white, about 2m long, are these cables known to be rubbish?)
2Mbps - 380Mbps on a brand new 1 week old laptop - connected wirelessly (5GHz right next to router), results vary massively between tests, no variables, just back to back tests.
1Mbps - 6Mbps on the same brand new laptop - connected with the Virgin supplied 2m Cat6 cable, results vary massively between tests, no variables, just back to back tests.
So, the Desktop PC is performing fine and the mobile devices are performing erratically because of the Hub3's flakey WiFi but generally fine but both laptops have extremely variable speeds both wired and wireless, I can explain the wireless away because of the Hub3's flakey WiFi but I have no idea why the wired connections vary so much on BOTH laptops. This is a problem as the brand new laptop is my Wife's NHS work laptop which is currently expected to be used for regular video calls.
Virgin are most likely not at fault here as the desktop PC proves that we have a fast stable connection entering the house so it must be a laptop specific thing? I build my own gaming PC's so I have a natural hate for slow laptops which is why I don't have one so I may be missing some kind of common knowledge that laptop have slow inconsistent internet speed for some reason. Either way I need to get it sorted for the Wife's work purposes. So, any ideas?