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+1
Under review

blank screen on connect

adam.connor 2 years ago • updated 2 years ago • 2

I have verified that this is not the same as this bug

https://control.product.connectwise.com/communities/6/topics/2644-blank-screens-with-multiple-monitors-macos

Description-

try to connect to an unattended client, results in black screen with a white rectangle in the middle and the text 'Connected'

However this text is lying, there's nothing you can do to make the connection work.

I was able to fix this on one machine by logging in with VNC, then dragging the app from /opt into the 

System Preferences/ Security/ Privacy/ Accessibility

'allow' panel

*I also rebooted the machine, not sure if that is important.

*reinstalling from the Control admin interface does not fix this

*I have not tried an uninstall & reinstall

This indicates that something is different enough between the v19.2 clients and the v19.4 clients to cause Apple's security to vomit and disallow it. I upgraded directly from v19.2 to v19.4 on Centos

ConnectWise Control Version:
20.8
Server Affected:
Host Client Affected:
Guest Client Affected:
OS:

                            
                            

                    

                
                

            
            
    


	
	


                    
    					
                    
	

	

	
	
    


  
  

  

  
    

    

      

        

      

    
      

        
      
          
    
    
    
    

    
  
  


  

  

    


    
    
    

    
    

    
    

    
    

    



    
    
    

    
    
    
    
    
    









   







	

        


    


	



		

		

			



  	
	



	
	
	

	

    

	

	



	
	
	

	
	
	

		adam.connor 2 years ago
    

	
working on a second machine with the same issue I found the following-
- had remotely rebooted several times with no effect
- machine had a manual IP address set (probably not relevant)
- logged into a working machine on the same network with CWC, then used VNC to get to the non working machine
- it appeared to have a user logged in whose password I don't have
- logged in with my admin credentials 
and sometime around that point the Control software became active again and I was able to log in using CWC- no other changes were made
Rebooted the machine and I was still able to log in. Weird.

	











	





  	
	



	
	
	
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		adam.connor 2 years ago
    

	
ok I have a workaround for this. 
The solution is not to re add the app to the security system preferences 
The problem is that I had set 2 things to happen when I log on to an unattended session
- blank guest monitor
- acquire wake lock
I've turned off both of these and things are working ok.
I suspect that this bug is related to this one-
https://control.product.connectwise.com/communities/6/topics/2650-blank-guest-monitor-actually-blanks-host-monitor
and I suspect if one was fixed the other would be ok- I'd concentrate on the other one as it is probably causing this one. 

	











	


		


		

		

		
		
		

		

	












          
          


          


          
          

            

              
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