User guide

Appendix F: Troubleshooting
280
Problem
Solution
SSL Security Warnings
The unit embeds its Internet Address (IP) in its SSL certificate.
Should the firewall perform Network Address Translation (NAT), the
SSL certificate will not match the IP address recognized by the
browser generating a security warning.
This is normal behavior.
The warning message does not affect operation of the unit.
Login
Problem
Solution
Login Failure
To provide additional security, the unit login page expires after three
minutes. Therefore, all login attempts after this time period will fail.
Reload the browser to reset this timer.
Hold down the SHIFT key and click Reload in your browser. This will
refresh the login page from the unit itself (not from a local cache)
and allow login to the unit.
RADIUS Users
The unit can be configured to support RADIUS authentication. Any
user not defined as a local user is considered to be a RADIUS user
when RADIUS is enabled.
If the RADIUS server is not reachable for user authentication for any
reason, the unit will not allow the user to log in until the unit receives
the result of the authentication request from the RADIUS server.
Authentication may take up to 20 seconds. Be patient and wait until
either the user successfully logs in, or the Authentication Denied
message is displayed.
Port Access
Problem
Solution
Port Access Refresh
The unit does not automatically refresh the Port Access list. It is
refreshed only when the user clicks Port Access. Therefore, it is
possible that a user will have permissions revoked and these
changes will not be visible on the port access page until the Port
Access button is activated.
You must log out and log in again for the new restriction to be
applied. Then the restricted ports are invisible.
Whenever possible, it is recommended that Administrators not