Tag: Office LTSC

Outlook LTSC cannot connect to office 365

Ayesh De Silva

When tring to connect to office 365 using Office LTSC getting an error “Something went wrong and Outlook couldn’t set up your account.”

This caused by missing reg key for the Modern Auth, fix can be apply via adding below reg keys. Make sure you have done all other tshoots before jumping to this 🙂

I have tested this with LTSC 2021 on Server 2019

reg add "HKCU\Software\Microsoft\Office\16.0\Common\Identity" /v DisableAADWAM /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Microsoft\Office\16.0\Common\Identity" /v EnableADAL /t REG_DWORD /d 1 /f
reg add "HKCU\Software\Microsoft\Exchange" /v AlwaysUseMSOAuthForAutoDiscover /t REG_DWORD /d 1 /f