No this hasn't been resolved. The engineer came and swapped a cable over and said the readings were much better. Within 24 hours the broadband was dropping a couple of times a day. Sadly I have had to resign myself to the fact that Virgin Broadband is rubbish.
I spoke to my neighbours and they've not been having the same problem. I've had the new hub and new wires, therefore I can only assume it's the cabling that runs into the house that has a fault. Have you had someone check this out? I've got another engineer's visit on Saturday...unfortunately everyone at VM seems to ignore the ongoing problem once the connection is live again after a reset.
May be time to set up a BQM at thinkbroadband.com - this will give you an insight into what is happening with the signal coming into the property, it will take a few hours to get any kind of trend showing.