Topic Tag: authentication failed. Forum / Topic Tag: authentication failed. Viewing 2 topics - 1 through 2 (of 2 total) Topic Voices Posts Last Post Authentication failed (key-based auth) Started by: dead_drops in: NoMachine for Linux 2 3 2 years, 8 months ago Britgirl Closed Clean install – “Authentication failed, please try again” 1 2 Started by: jonbelanger in: NoMachine for Mac 6 18 8 years, 5 months ago bakhtadze Closed Viewing 2 topics - 1 through 2 (of 2 total)