Symptoms
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When starting the migration, the following error is shown in Plesk UI:
Error: RPC agent on source server '203.0.113.2' is running not under built-in administrator account.
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When starting RPC agent on source server manually, the following warning appears:
[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.