I’m completely stumped with an issue concerning a High Availability deployment of Portal 10.5.1 on Windows Server 2016.
I'm following these steps http://server.arcgis.com/en/portal/latest/administer/windows/configuring-a-highly-available-portal.htm and after completing step 3 the Portal becomes unresponsive (home page won’t load, can’t log in to portaladmin, etc) and I’ll see the following error in the logs:
SEVERE
The portal has been initialized and configured but is not accessible. The internal portal database does not appear to be running or accepting connections. Restart the portal machine or machines and if the problem persists, contact Esri technical support (U.S.) or your distributor (customers outside the U.S.).
I have tried all kinds of things (including contacting support, different file servers, firewall is disabled, re-installing, patches, setting permissions to be as liberal as possible). Note that the Portal works perfectly fine on a single machine, it is only after the join in Step 3 that these symptoms develop.
The issue I'm having seems to be similar to these posts but no solution is really made obvious in these:
https://community.esri.com/message/719338-arcgis-portal-issue
portal HA 10.5 issue
Any ideas would be greatly appreciated!