Issue: While logging in to Windows Client, an error Cannot add or change the endpoint (same name or software_name already exist?) is displayed on the workstation.
Reason:
Windows Client is installed on the machine. After the first reboot an endpoint is created. You can find the local data in the path: %ProgramData%\NetIQ\Windows Client\config.properties. It is possible that the config.properties file is deleted or overwritten, but the endpoint is still available on the Advanced Authentication server.
Workaround: You must remove the endpoint from the Advanced Authentication server (Administrative portal > Endpoints section).
Multiple machines are rolling out from a single gold image. They have the same machine SID. The endpoint is generated based on the SID.
Workaround: The SID must be unique to ensure the Windows Client works on multiple workstations.