I have had the same IP address via Zen for over 10 years now which is very useful to me as I am required to have a static IP address for access to my secure network at the University I work at and various research databases and projects that I am working on.
This morning I have noticed that I can no longer access various websites (examples - tesco.com, sky.com, ebay.co.uk, cbc.ca) as I get an Access Denied 'You don't have permission to access "
http://groceries.tesco.com/groceries/" on this server. Reference #18.d5d2dead.1620387505.2ffd2a0" - the reference number at the end isn't static and changes with a refresh.
If I attempt to connect to any of these sites via 4g on my phone they work fine, switch wifi on my phone (i.e. direct the traffic via Zen) and it is back to access denied. Connecting via the University secure VPN (traffic via JANET) and the sites work fine again.
I've spoken to Zen and done all the usual things, flushing DNS cache, changing DNS, rebooting hardware and nothing worked.
Then Zen gave me access to a test username and password which took me away from my static IP address and everything started working again.
Zen's tech support and my line of reasoning suggests that it looks like my IP address has been blocked somehow and all they can suggest is getting a new static IP. Before I do this, however, is there anything else I could try or even find out how my IP address has come to be blocked and by whom? I'd rather not change IP address as I would need to contact a few different people to set things up again, so any suggestions would be gratefully received :-)