Skip to main content

Hey All,

Ive been noticing an error that seems to be popping up more and more lately in our environment with screen-sharing through Casper Remote.

Over the last week, Ive had a handful of clients I've tried to screen-share and get all the way through up to the users clicking "Allow", after which I receive the following error upon "screen-sharing starting".

external image link

I've checked the machines, and verified screen-sharing and remote login are both enabled, but I still receive this error. I'm not really sure what it could be, I can still SSH to the users via terminal, and run commands from there.

Im kind of stumped, and wanted to see if anyone else has seen a similar issue with screen sharing as of late?

Thanks again

We've been having problems with Casper Remote also failing to connect in the last step of Screen Sharing ever since going to casper 9.9x. We are running Mac OS El Capitan on our machines. We are also having the problem with our Apple Remote Desktop. We have discovered that if we attempt screen sharing with ARD and then try to screen share the same machine via Casper Remote, at the same time, that it will usually start to successfully screen share via one of the programs. We haven't verified, but it appears that each attempt at screen sharing will up the port number by one, and eventually will get to a port number it likes and screen sharing starts.


For anyone still experiencing this issue. I am seeing that upon disconnect the casperscreensharing user is not being removed from the system. rm -rf /var/casperscreensharing ; dscl . -delete "/Users/casperscreensharing" followed by the enableARD.sh script.

Seems to restore functionality


Today is July 9, 2018 and I am using JSS 10.5 and Jamf apps 10.5. I am having the very same problems. I am working with jamf support who escalated my case to the next level. We still haven't gotten to the bottom of it.


Today is July 9, 2018 and I am using JSS 10.5 and Jamf apps 10.5. I am having the very same problems. I am working with jamf support who escalated my case to the next level. We still haven't gotten to the bottom of it.

Same issue here. Any fix? we are on 10.5


Check out my post for Terminal commands needed to be run after installing the QuickAdd.pkg in order to lock down only JAMF Remote user from being able to Screen share.

https://www.jamf.com/jamf-nation/feature-requests/7463/request-to-enable-remote-access-in-the-quickadd-pkg

Also be aware that JSS v10.50 the jamf binary symlink is broken (sudo jamf ..... in Terminal will not work) so that might be also causing issues.

For screen sharing not presenting a prompt to access I have found that if the User Privilege is set to not prompt for screen sharing you are unable to uncheck that box for existing users (at least if cloning an account).