Windows 11, version 22H2: changes to network printing

In Windows 11 update version 22H2 the method of communication between client and server has changed from RPC over Named Pipes to RPC over TCP.

Quote from Microsoft:

Update details

  • For print related communications, by default, RPC over TCP is used for client – server communications.

    • Using RPC over Named Pipes for print related communication between computers is still available but is disabled by default.
    • Using RPC over TCP or RPC over Named Pipes for print related communication can be controlled by Group Policy or through the registry.

  • By default, the client or server only listens for incoming connections via RPC over TCP.

    • The Spooler service can be configured to also listen for incoming connections via RPC over Named Pipes. This isn't the default configuration.
    • This behavior can be controlled by Group Policy or through the registry.

  • When RPC over TCP is used, a specific port can be configured to use for communication instead of dynamic ports.

  • Environments in which all computers are domain joined and support Kerberos can now enforce Kerberos authentication.

See also