Please post your power levels, Pre and PostRS errors and Network log from the Hub.
Checked by VM twice all within normal parameters.
Setup a BQM here to record your circuit www.thinkbroadband.com/ping
Once done we can comment.
Meantime try checking with Area faults on 0800 561 0061 or if you have a VM landline 150 as small local faults are not listed on the VM status page.
Done no faults
Also check with a different Cat 6a cable and check the cables are seated properly.
Done
If using a Windows PC, try using "Safe Mode with Networking support" to rule out any software problems.
Done