If a visitor is reporting difficulty viewing websites on your server it is possible they have been blocked by the firewall. In order to protect your server from brute force attacks (where a cracker tries many different passwords until the correct one is found) we block IP addresses after a number of failed login attempts.
If a visitor has forgotten their password and been blocked as a result, then they should be automatically unblocked within one hour (though they might be blocked permanently if this happens repeatedly). If you need to unblock a visitor, please open a support ticket with the visitor's IP address and we will restore their access.
