NoMachine Support

Your questions answered

Knowledge Base

Searching in: Trouble Reports
Filter the search results
Last update:
Affects:
Product:
Status:
Searching in: Trouble Reports
ID: TR02S10068
Added on: 2021-02-11
Last update: 2021-03-03
Solved in: 7.2.3
Platform: All Windows Platforms
Product: NoMachine Server
Severity: Minor
Status: Closed
Error 'The session negotiation failed' occurs when a user is already logged on at the physical desktop

This problem occurs with NoMachine free installed on Windows and when the SSH_AUTH_SOCK environment is already set on the system by some other applications.

In this case, if the user is already logged on at the physical desktop and the NoMachine user tries to connect by remote,  the session fails to start with message:

The session negotiation failed.

 Error: Last operation failed