Routing issues with a large number of internet sites.

Was notified last week that would be without internet access for a day due to maintenance.

Finding today that I've lost access to a large port of the internet, can't access work VPN endpoints, arturia.com, twitter.com, vps.ovh.net and more.

Location is Belfast and factory resetting hub has not helped. No issue with other providers. 

Whatever is broken/misconfigured between belf-core-2a-ae20-650.network.virginmedia.net and tele-ic-9-ae0-0.network.virginmedia.net needs looked at.