Problem
You have 2 Jira on-premise instances and you're trying to set up a Connection between them.
Error detail:
Cause
When the instances are created from the same back up they have the same server ID.
Exalate uses the server ID to detect the local connection type.
Solution
You need to update a table in the database.
The database table name is NODE.
Run the following query to change the ID.
UPDATE "AO_08F1AF_NODE" SET "INSTANCE_UID" = '<PICK A NEW UNIQUE IDENTIFIER>'