Can you run the test like this ________________________
If you think that you have a BB speed problem, then to check the speeds coming in to your Hub properly, and whether they match what you should be getting, you cannot rely on wifi tests only full speeds "TO" the Hub are guaranteed. So, can you test speeds directly like this.
As you expect >100Mbps then connect a 1GB enabled computer/laptop, with up to date drivers, via a NEW and working Cat5e/6a ethernet cable, directly to the Hub which you have put into “modem mode” (https://www.virginmedia.com/help/virgin-media-hub-modem-mode ). This ensures that NO other devices are connected
If they are still low – boot your device into Windows safe+networking mode - to disable any potentially interfering software - and try again. There are many posts on here (I have a list of ~30!) where QoS software, anti-virus, unknown/flaky software, old network card drivers, corrupted browsers, bad cables or other connected devices are limiting speeds on tests.
Report back what that gets. For examples of why... see message 7 in the first thread and 9 in in the second and 3 in the third
I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 2 on WiFi) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On Volt 350Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.