Unable to start migration in Plesk for Windows: Error: RPC agent on source server '203.0.113.2' is running not under built-in administrator account

Symptoms

• When starting the migration, the following error is shown in Plesk UI:

  PLESK_ERROR: Error: RPC agent on source server '203.0.113.2' is running not under built-in administrator account.

• When starting RPC agent on source server manually, the following warning appears:

  CONFIG_TEXT: [WARNING] RPC agent was started by not built-in administrator. Despite that it is ready to accept connections, Plesk Migrator could be unable to interact with it. You should ignore this warning in case of migration from Helm 3: Plesk Migrator will be able to interact with RPC agent, started by Helm Administrator account.

Cause

Migration is started not under the built-in Administrator account. In this case, Plesk Migrator is unable to perform different operations on the source server because of a lack of permissions.

Resolution

Start migration using built-in Windows Administrator account. Built-in Windows Administrator is configured in Control Panel > Administrative Tools > Computer Management > Local Users and Groups > Users. 

More information about the migration can be found in the Migration Guide.