APPENDIX J: T ROUBLESHOOTING 143Port AccessPROBLEM S OLUTIONPort Access Refresh The unit does not automatically refresh the Port Access List. It is refreshed onlywhen the user clicks on the [Port Access] button, therefore, it is possible that auser will have permissions revoked and these changes will not be visible on theport access screen until the [Port Access] button is activated.• A window will appear indicating that permission is no longer allowed tothis port.• Whenever possible, it is recommended that Administrators not change portaccess rights to a user who is already logged in to the unit.UpgradePROBLEM S OLUTIONFTP - Server Unreachable Should the FTP server specified in the upgrade panel be unreachable or incorrect,the upgrade process will halt until a response is received from the FTP server oruntil a timeout occurs.• Please wait and allow the FTP Server Unreachable message to appear.FTP - File Not Found The unit requires a package of upgrade files to be in the directory specified by theupgrade path. This package must have all included files and an upgrade.cnf file.Should this file not exist, or if the contents of the file are not in the indicatedplaces, the File Not Found message will appear.• Verify that the upgrade package is in the correct directory and confirm theupgrade path and IP address of the FTP server.• If the upgrade still fails, reinstall the upgrade package and begin again.ModemPROBLEM S OLUTIONLogin Failure The unit supports Web-browser access through the modem at connection speedsof 28.8K bps or greater. Should the baud rate be insufficient, the user will beunable to log on to the unit via the modem.• 28.8K bps minimum connection speed is required for browser-basedmodem authentications (login).
