An error has occured "Sorry Guest, you are banned from using this forum"

[zz00mm]

All,
     My workstation that I use a VPN on is showing the following:

     An error has occured, Sorry Guest, you are banned from using this forum!
     The ban is not set to expire.

     I cleared the browser cache and it worked for a few minutes. Then the above appeared again.
 
     Am I doing anything wrong? How do I get questions answered regarding this?

Thanks
Zz00mm

[patient0]

It's usually when you use VPN which means that IP the forum sees you is used by multiple VPN user. And the IP landed on a spam or abuse list which in turn is used by the forum software.

Can you try with the VPN off (at least for the forum) or use another VPN server of your VPN provider or another VPN provider. Sometimes @franco chimes in and can remove the IP from the blacklist. You may send him PM directly with the VPN IP involved.

[RobertoZ]

Same issue here.  Using VPN gets you banned from the forum. 

[Monviech (Cedrik)]

Use a VPN that offers IPv6, the forum has that and the IP address is more unique than with IPv4.