- For Tridion Sites 9.1 and 9.5, error "The RPC server is unavailable" seen for Topology Manager after new installation.
- Administrator had removed hostname from Active Directory for previous installation, and attempted to use the same hostname for a second virtual instance using the same hostname for new installation using Windows authentication.
- KB article
Tridion Sites - CreateGroupExecute: error The RPC server is unavailable when installing Topology Manager is not applicable.
- Customer uses AWS Directory Services and an internal Active Directory server, so possibly the deleted hostname is referenced in one of those two AD services.