Without answers to the questions, all I can do is suggest that you call VM on 150 (or 0345 4541111) to seek further assistance.
If you can answer my previous points, I/someone on here may just be able to help.
What exactly are you seeing in the network connection screen? If you can verify the box is reporting a working connection, then the "Connect to Virgin Media services now" could be worth a shot. You've not mentioned trying that yet.
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