You've started a second post on the same issue. That's a good way of diluting the assistance you might get, and irritating those who wish to help you.
However, your BQM confirms an appalling quality of service, although I'm seeing it in preview mode because VIP users can do so. It shouldn't get approved by the mods for public viewing because you've copied the image from your private view, and it contains your IP address . If problems continue, can you post a link (not image) to a shared live graph of your BQM?
Network log is similarly bad, but It looks better on 24/25 October, how has it been since?
The post-RS errors on the downstream channels 14 and 20 shouldn't be there, but probably not enough on their own to establish the cause. My (unproven) suspicion is the common culprit of upstream noise, that disrupts communication between the hub and VM's network gear. This is often hard to find evidence of in the hub's status data, but if you can have a look and see in real time when your BQM is bad, and then take a set of Upstream status data that might show any upstream issues.
I'm a Very Insightful Person, I'm here to share knowledge, I don't work for Virgin Media. Learn more
Have I helped? Click Mark as Helpful Answer or use Kudos to say thanks