Thanks for providing a detailed description of what's happening and what you've already tried. This does save time
I have tested your connection but can see no obvious issues with the network and suspect a replacement Hub would be the logical step to take. I'd like to verify some details with you first so please reply to my PM (purple envelope icon, top right of page) and I'll get a new Hub sent out.
I am running on the VIVID 200 broadband service, with a Superhub2ac running in Router mode. I have been trying to operate more than 2 Ethernet ports on the device for about a week now, but when I try to activate service by plugging into a third Ethernet port, all three Ethernet ports go "haywire" and stop functioning correctly (kick-off the services running on the ports) !! It does not seem to matter which of the 4 Ethernet Ports I use, but any two work fine, then when I plug-in the third the trouble begins immediately. Can anyone help please ?? I'm thinking maybe I need the Superhub3.0 these days, because our broadband traffic has increased a lot since we began with Virgin two years ago. This increased demand on the Router includes a recently installed TV V6 box, and its required Ethernet connection, to allow us to operate "box 2 box" services with our other TIVO box.
I've moved this Post onto this "thread" because I believe it is more appropriate. Would appreciate anyone's help !!