The effect of enabling the Multi Factor Authentication for Skype for Business
I wrote this was because of one of my colleagues was unable to access his Skype for Business after enabling the MFA of his Office 365's account. Symptom After enabling the Multi-Factor Authentication on the Office 365 of the users, it keeps asking you to log in again. Caused By default, the application in the Office 365 in the matter Skype for Business is not using Modern Authentication. Solution Enable the Modern Authentication for Skype for Business per user. (It is because not every user has MFA enabled) Steps Download Skype for Business Online, Windows PowerShell Module https://www.microsoft.com/en-us/download/details.aspx?id=39366 Use PowerShell and run below import-module LyncOnlineconnector $credential=get-credential $cssession = New-CsOnlineSession –Credential $credential import-pssession $cssession Set-CsOAuthConfiguration -ClientAdalAuthOverride Allowed Get-CsOAuthConfiguration