ApplicationKey in central config does not match

Wrong key or stale Config

Fix Install.ini; remove stale Config.

validateconfig failed

Missing or corrupt Config

Run -readconfig; run -initconfig with a matching key.

Portal login fails after DR

Wrong ApplicationKey

Restore the correct key from backup.

Second node cannot start

Copied .enc file

Use the same hex key per node; run local initconfig.

Upgrade aborted on Config copy

Destination key differs

Align keys or remove stale destination Config.

Dapi / integration errors

ChangeMe password

Configure Dapi after installation.