ARD 3.9: Authentication Failed

My 3 Macs have updated to ARD 3.9 (client and desktop). Just before one of the hosts updated to ARD Client 3.9 I started getting an "Authentication failed" message when accessing from a Mac with ARD 3.9 installed. I then upgraded the Desktop Client to 3.9 but the same issue occurred. As a workaround I have created another Admin user on it and use that to access it via ARD. Any ideas how to fix this? Must be something on the host side.

I tried the fixes posted here but they didn't work:

https://www.expandrive.com/fix-apple-remote-desktops-authentication-failed-error %E2%80%94remotely/

http://www.markandersononline.com/blog/apple-remote-desktop-fix-authentication-f ailed-error/

Mac mini (Late 2012), macOS Sierra (10.12.3)

Posted on Feb 21, 2017 5:51 PM

39 replies

Feb 23, 2017 1:27 AM in response to Ewarrior999

THANKS! This works!

Here's my comment to Apple: Geeez! ....Apple has completely lost it's way! How can they release CRAP software like this? Snow Leopard was the best they ever did.

Bret M

Level 1

4 points

Feb 27, 2017 7:39 AM in response to Matthew Geller

Is anyone getting this issue fixed?

Feb 28, 2017 12:56 AM in response to First 50 Mac Owners

Same error for me - lets hope all clients on my network dont receive this message. We have hundreds of Macs on our domain... could be an interesting morning....

#CoffeeTime

Mar 1, 2017 1:34 AM in response to inforr

Disk Repair and Reboot seems to have fixed the nag screens on some of our client machine.

ARD from an admin side seems less stable since the update 😟

Mar 1, 2017 11:47 AM in response to pennsvillesupport

Genius!!! Quick and easy fix! Thank you so much!!!

HPeet

Level 1

8 points

Mar 14, 2017 4:53 PM in response to inforr

Remote Desktop Client Update v3.9.2 just released! I'll go first.

Mar 14, 2017 5:02 PM in response to HPeet

That worked.

HPeet

Level 1

8 points

Mar 14, 2017 5:20 PM in response to inforr

Yes, it works both long and short user names along with fixing the one or two stubborn machines that sometime worked.

Go for it.

Apr 7, 2017 8:20 AM in response to darinfromgreensboro

Solved it for me. Thank you for taking the time to share your helpful information.

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ARD 3.9: Authentication Failed