Our property is designed to have the virgin installed under the stairs as there is a switch panel next to it, designed to serve other points throughout the house. However when Virgin came out to do the installation (March 2021), the engineer didn't have the correct panel to fit it there and suggested the living room would be better.
I didn't dispute it at the time but would now like to utilise the other cat6 ports. The other reason I am considering this is that we are also plagued with connection and performance issues I was wondering it is the proximity of the router to the TV. There's a limited amount I can do here as the place the engineer installed the router is in the same place as the media plate for the TV.
I'm not sure I understand what you mean by "the engineer didn't have the correct panel to fit it there and suggested the living room would be better" as installation doesn't require a panel, just an internal termination box (and a powered cable if it's fibre). You can get the box moved for £25.
As for your performance issues: these are something else to resolve, and if you can describe them here you should be able to get help.
I think it will have been the internal termination box, I wasn't sure how to describe it.
With regards to the issues I'm experiencing, I've got an open support call with Virgin. They have said they need to monitor it for another 24 hours and will then call me back. For info though, the latest issue we're experiencing is no ethernet ports on the router working. We did have 1 working until I spoke to Virgin earlier!