red light on router constantly

Looks as if I need a new router. On a hub 3.0 with everything working but red light on constantly for last few weeks. Have tried all suggestions in previous posts, including factory reset. Box is in a cool room. Feels warm to touch but not hot. I usually use the chatbox feature but cant find it anymore. Have had incredibly time wasting telephone conversations in the past from Virgin (and many other companies tbh).

From a previoius post - 

• ➡ Turn the power switch off on the back of the Hub.
• ➡ Ensure the Hub is upright, in a well-ventilated location, and, if at all possible, out of direct sunlight.
• ➡ Then use the power switch to turn the unit back on. The Hub should now operate normally.

Any help please?

thanks,

Alasdair