~~~~~~~~~~~~~~~~~~~~~~~~~ All posts made are personal opinions as I do not work for VirginMedia. Kudo's a post if you find it useful and want to say thanks Mark a post as a helpful answer if it answers your question
My apologies that you are having issues with your broadband connection.
Looking at the information you posted, there are issues with the Modem SNR (signal to noise ratio), RS Errors and the downstream power levels. For this I would like to arrange for an engineer appointment to check this over for you. I've sent you a PM (purple envelope icon, right corner) with some details for you to confirm please.