While trying to access Mac Client via TightVNC in SCCM Console the error occurs:
On the Mac do the following:
Open Sharing preferences if it isn’t already open (choose Apple menu > System Preferences, then click Sharing), then select the Remote Management checkbox.
Do one of the following:
Select “All users” to let all users on your network connect to your Mac using Apple Remote Desktop.
- Select “Only these users,” click Add , then select the users who can share your Mac using Apple Remote Desktop.
Click Options, then select the tasks remote users are permitted to perform.
- Click Computer Settings, then select options for your Mac. If people connect using a VNC viewer, you need to set a password.
If there were active VNC sessions on the Mac, you may need to restart it to apply the changes.
For more information, please refer to: OS X Yosemite: Allow access using Remote Desktop