Agent {0} cannot be found in the MID server table, when attempting to Validate a MID ServerDescriptionWhen attempting to Validate a MID Server, a blue info message appears along the top of the MID Server form, and MID Server doesn't validateAgent {0} cannot be found in the MID server table This can occur for fresh installs, where the ecc_agent record appears, but has not been validated yet, and also for existing MID Servers that require invalidate then revalidate.Steps to Reproduce As an admin user (who will be inheriting agent_admin)On a mid server which is not validated, click Validatea blue info message appears along the top of the MID Server form, and MID Server doesn't validate"Agent {0} cannot be found in the MID server table" Browser debug confirms the client side UI Action code is submitting an empty sysparm_agent parameter to the instance via an xmlhttp.do ajax transaction, which the server side script include code needs to query the ecc_agent records using that mid server name. Without that name, it can't find the record and can't validate the MID Server.WorkaroundThis problem is currently under review and targeted to be fixed in a future release. Subscribe to this Known Error article to receive notifications when more information will be available. If in this situation, clicking "re-key" instead will validate the MID Server.Related Problem: PRB1746087