Ok.. I think I found a bug..
After updating from ISPconfig 2.1.2 to 2.2.2 I have the following problem.
I'm accessing my server with SSH not on port 22 (standard port) but on port 1000 (changed for security reasons)
On the old ISPconfig 2.1.2 version I changed this in the firewall settings
Now, when I look at the 'Server > Services > Firewall' it is showing me this:
When I scan my IP, it is showing me that port 22 is closed, and port 1000 is still open!
Also.. I can NOT access my server on port 22, but port 1000 is still fine!
I guess removing the 'firewall' rule, and adding it again will fix it, but I thought that the ISPconfig team should know about this..