All you can do is a Hub “pinhole reset” exactly like this - not as the website says ! ...... - first make sure the 2 passwords on the Hub sticker are still there and legible first ! Disconnect any ethernet cables from the Hub (leave the coax connected), and then with the Hub still "switched on" throughout, press pin in firmly with paper clip/SIM tray tool or similar "thin thing" and hold it firmly for at least 60 (a timed sixty) seconds, release the pin, leave for 5’ to stabilise - dont manually switch it off at any time. Passwords and SSID’s will reset to those on the sticker. See if that sorts it.
Also do a quick check that all of your coax cable connections are in nice and "finger" tight - at the Hub and wall box and also at any connectors etc. Disconnect all the connections and reconnect to be sure. Ensure there are no “unterminated cable loose ends or loose wires on the connectors . Also check that the internal wiring is ok with no kinking or chaffing, check that all looks good with the outside cabling (no clips piercing, or broken sheathing) and the wall box.
If none of that helps come back her and post up all of the Hub data
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John
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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.