The red light light can pop up on a number of occasions. Depending on the age of the hub eventually white light can fail and red becomes default.
Checks you can do.
Make sure all the cable are secure on the hub or splitter.
Do a simple reboot switch off at the mains for 15 sec and switch on give at least 15 for the reboot to preform.
Is the hub hot when you touch it .
Your Hub works best when it is out in the open. By keeping it out of cabinets, next to TV’s rather than behind them and away from fish tanks, this will allow the hub’s signal to cover a greater area and provide a better WiFi connection. Virgin recommended not keeping your hub too close to cordless gadgets, such as wireless speakers, baby monitors and cordless phones as these can interfere with WiFi. Allow at least a metre of clearance for best performance.
It's also important to keep your Hub 3 upright, with its light facing out towards the room. This means that the signal travels out into the room, and not into the floor.
Do a check on the service checker to see if there is a fault in the area https://www.virginmedia.com/support/help/service-status/address-identification/identify. If you have 3 green ticks click on still having issues and guide yourself through the self help.
