Migrate Email Router Data Not Working - Dynamics CRM(On-premise)

Question

I am currently on Microsoft dynamics crm On-premises and I wanted to switch from Email Router to Server Side Synchronization for that I am CRM provided "Migrate Email Router Data" Going to Settings > Email Configuration > Migrate Email Router Data

But then I getting below error message -

"The Migration process cannot start. Microsoft Dynamics CRM will not transfer credentials over an unsecured channel. Contact your system administrator."

I have ran below query on CONFIG database to disable ssl check.

UPDATE [MSCRM_CONFIG].[dbo\].[DeploymentProperties] SET [BitColumn]=1 WHERE ColumnName='DisableSSLCheckForEncryption'

and performed IIS Restart.but still same error.

Please help.

Seeking for an help to address the issue