Before users are presented with the Captive portal login page, a windows containing the above security error always appear, complaining about the fact that a connection is being made to the IP address of the gateway, while the Certificate belongs to the gateway’s Full CN name. Clicking Ok would get them to the login page and things work as expected. Any way we can get rid of this Security Error message ?
I hope to solve this problem in one of the next releases.
At the moment a workaround could be to add a host (if for example the IP of the Captive Portal is 192.168.0.75) with the hostname 192.168 and the domain 0.75
The related X.506 certificate will have the CN=192.168.0.75 which is the same that the IP.
Then you have to select this certificate for the Captive Portal authentication server to avoid the warning security message to appear.