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DMZ installation: Portals never load

I installed Password Manager portals on a server in a DMZ and configured as per Administrator's guide, but I cannot get to any portal.
All 3 of them keep loading and do not show anything.

User-added


Such behavior occurs when the frontend server cannot communicate to the backend because of the firewall or antivirus software blocking connection.


Troubleshooting steps

  1. Make sure that the frontend can ping the backend and vice versa.
  2. Make sure that all required firewall rules are in place. Refer to the KB2145: https://kb.netwrix.com/2145
  3. If the above does not help, try temporarily disabling all firewalls and antivirus software to confirm whether they are blocking the connection.