Exception : (Code: 0x80070005) Skyline.DataMiner.Net.Exceptions.DataMinerSecurityException: Unable to authenticate as current Windows user ---> System.MissingMethodException: Method not found: 'Void System.Diagnostics.DiagnosticSource.Write(System.String, !!0)'.
at Skyline.DataMiner.Net.Serialization.ObservableFormatter.Serialize(Stream serializationStream, Object graph)
at Skyline.DataMiner.Net.Connection.EnsureRsaProviderAvailable()
at Skyline.DataMiner.Net.Connection.AuthenticateViaSspi(String userName, String password, String domainName, Byte[] evidence, Guid fallbackConnectionID)
--- End of inner exception stack trace ---
at Skyline.DataMiner.Net.Connection.AuthenticateViaSspi(String userName, String password, String domainName, Byte[] evidence, Guid fallbackConnectionID)
at Skyline.DataMiner.Net.Connection.Authenticate(AuthenticationMethod method, String userName, String password, String domainName, Byte[] evidence)
at Skyline.DataMiner.Net.GRPCConnection.GRPCConnection.<>c__DisplayClass60_0.<Authenticate>b__0()
at Skyline.DataMiner.Net.ConnectionWaitState.TryToAuthenticate()
at Skyline.DataMiner.Net.Connection.WaitForConnection(ConnectionWaitState waitState)
at Skyline.DataMiner.Net.Connection.InternalWaitForConnectionInternalAsync(Object state)
Hi Phil
Have you checked the launcher launcher version? I have seen a very similar issue in the past when the Cube launcher version hasn't been upgraded, but a new version of Cube is deployed.

It certainly did need a newer version of the launcher, anything above 10.4.x