Once again I'm finding some sites cannot be contacted on my HB connection... Parts of Sainsbury's, parts of Argos, Santander online banking are the ones I've found not working so far this morning. This is getting more than a little frustrating!
I wouldn't bother reaching out to them about it as I did that when I couldn't access my Santander login from any device.. they didn't respond for more than a week, infact they didn't bother responding atall even after I informed them that I had somehow miraculously managed to fix it myself
To fix this I simply unplugged the router & ONT for an hour each time (usually when watching something on TV that I'd downloaded before) and then plugging it all back in again.. usually this would churn out a new public IP.
Took 2 attempts to get it out of the IP range it was in, didn't seem to like one of them which I was assigned to anyways..
Hope this helps