ColdFusion · Database exception
What does Connection verification failed for data source mean in ColdFusion?
ColdFusion could not verify a working connection to the configured datasource. Common causes include a database server that restarted or became unreachable, an expired or changed credential, or an incorrectly specified instance name combined with a port number, which SQL Server rejects as an invalid combination.
ColdFusion could not verify a working connection to the configured datasource. Common causes include a database server that restarted or became unreachable, an expired or changed credential, or an incorrectly specified instance name combined with a port number, which SQL Server rejects as an invalid combination.
Check the datasource is actually reachable from the ColdFusion server (not just from your own machine), confirm credentials haven't changed, and if using a named SQL Server instance, remove the port number from the connection string since specifying both is invalid.