When you ask the user to authenticate with an additional RADIUS server, directed at a 3rd party solution (for example SecurEnvoy, Swivel, Vasco), and the user strongly authenticates (ie username and password+passcode) which is acknowledged by the 3rd party solution as correct - the Sophos SSL-VPN client returns to the login screen with requests for Username and Password.
This looks like it is a timeout issue or suchlike that other firewalls can handle, or at least be configured to mitigate, why can't the Sophos XG?
Edited TAGs
[edited by: emmosophos at 5:39 PM (GMT -7) on 2 Jun 2021]