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ID:TR07X11891
Added on: 2026-07-23
Last Update: 2026-09-14
Solved in version: 10.0.57; 9.9.6
Platform: Mac OS/X 26.x
Product: NoMachine Server
Severity: Minor
Status: Solved
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Custom sessions may fail to start on macOS Tahoe 26.5.2

The connection to the remote Linux host succeeds, but the session fails when attaching to XQuartz display  Message "Error was: Protocol error" is issued in this case.

Workaround is to start XQuartz manually before starting any NoMachine custom sessions.

SOLVED, Released in version 10.0.57; 9.9.6