Connection validation failed when creating connection

Issue

When attempting to create a connection to an on-premises server hosting Nintex Gateway, the connection creation fails with 'Connection validation failed'.

Error Code

Connection validation failed. If you contact support, include this correlation ID. xxxxx . . . .

Error code: InputValidationErrorCode

Resolution

Install Nintex Gateway version 2.3.2

Related Links

Nintex Gateway release notes

https://help.nintex.com/en-US/platform/ReleaseNotes/NintexGateway.htm