I recently tried to connect an old sky router to my Hub 5 via ethernet so that I could use it as a wireless access point in another room. I made a couple of changes to the old router and got it to work fine. I have since disconnected the old router and connections are back to just the Hub 5.
However, ever since then I cannot access certain sites that I could access fine prior to connecting the old router. It's as if the Hub 5 has inherited some information from the old router and is actively blocking access. If I use a VPN I can connect fine.
I have tried a few pinhole resets but the blocking still exists. My neighbours who are also on Virgin BB have no issues accessing the sites so it does appear to be Hub related.
Any help/ideas would be much appreciated.
Thanks in advance.
[MOD EDIT: Subject title changed for clarity]