Please make sure that you are using the most recent spacedesk Driver v1.0.33.
For further analysis, could you please run the spacedesk Driver Console window -> Diagnostics on your primary machine, then follow the steps below:
– switch Diagnostic ON
– connect viewer app and reproduce the error 2-5 issue
– switch Diagnostic OFF
– click Save All Information
PS: Saving all information will take a few seconds, then please send us the whole folder which contains all the diagnostic logs collected.
Please right-click the folder -> Send to -> Compressed (zipped) folder, then attach the *.zip file on your next reply.