The solution posted by RCT_IT won't work in my case (sadly ;-() BTW, i've tested the TeamViewer_Assignment.exe's solution and that worked (below the Powershell code). The groupID has been retrieved with the RCT_IT solution. Start-Process -FilePath "C:\temp\TeamViewer_Assignment.exe" -ArgumentList "-apitoken `"xxxxxxx-xxxxxxxxxx`" -datafile `"C:\Program Files (x86)\TeamViewer\AssignmentData.json`" -groupID `"gxxxxxxxxx`"" -Wait -PassThru If you don't have the AssignmentData.json file you have to re-install TV14 with the following code (also in this case PowerShell): Start-Process -FilePath "msiexec.exe" -ArgumentList "/i C:\temp\TEAMVIEWER\TeamViewer_Host.msi /L*V C:\temp\TEAMVIEWER\TeamViewerInstall.log /qn CUSTOMCONFIGID=`"xxxxx`" APITOKEN=`"xxxxxx-xxxxxxxxx`" ASSIGNMENTOPTIONS=`"assign --grant-easy-access --reassign --alias %COMPUTERNAME%`" IMPORTREGFILE=1" -Wait -PassThru In this way the AssignmentData.json will appear (until the next TeamViewer problem...). Obviously this is only a workaround, not a solution...
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Also in Version 14 with the msi installer assignment built-in tool. ApiRequestExecutor: request https://webapi.teamviewer.com/api/v1/groups failed with 500 - errorName: internal_error - errorDescription: A group with the same name already exists for this account. Please choose another name. - errorSignature: - 2019/02/04 10:22:31.077 3812 3412 C0!! AssignDeviceSequence: assignment failed [errorCode=2, errorDescription=Call to TeamViewer-WebAPI failed with error internal_error] 2019/02/04 10:22:31.077 3812 3412 C0+ AssignDeviceSequence: Error details: HTTP: - Original API-Call: https://webapi.teamviewer.com/api/v1/groups - Response-Code: 500 - Response-Error: API: - Error-Name: internal_error - Error-Description: A group with the same name already exists for this account. Please choose another name. - Error-Code: 3 - Error-Signature: - Please help!
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