My broadband is completely unusable for everybody on the house, no matter if connected through WiFi or ethernet as I am. We get lot's of T3 timeouts and pre rs errors, and I only have one channel for downstream and one for upstream. I checked regularly for the last two weeks the service status on my area, but they always say there is no problem.
1. Check all connections are finger tight! if that doesn't improve things: 2. Reset the hub - Pinhole reset - disconnect any ethernet cables and hold in the reset button with a paperclip or similar for at least 60 seconds
Allow it all to come back on (if it does) - COuld take 10 minutes.
Check again and if that doesn't improve things - VM would need to book a technician visit!