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Searching in: Trouble Reports
ID: TR02S10079
Added on: 2021-02-18
Last update: 2021-03-03
Solved in: 7.2.3
Platform: All Platforms
Product: NoMachine Server
Severity: Minor
Status: Closed
'Session negotiation failed' occurs when connecting to a Cloud Server v. 6 which has servers v. 7 as nodes

This issue occurs when the nodes ('child servers') of a Cloud Server v. 6 are upgraded to v. 7 while the Cloud Server is still v. 6.

This affects only nodes added by using  'forward-nx-method tunnel'.

In this case, the user's attempt to connect terminates with 'Session negotiation failed'.

Server logs report:

NXSERVER NXMsg: Sending error message 'NX> 500 ERROR: Last operation failed.'