In a new Skype for Business Server 2015 lab we tried to sign-in to Office 365 in the Skype for Business Control Panel: But after a few seconds we got the following error message: We couldn't log in to your Office 365 account. Please check the errors and then select OK to try again: Get-CsWebTicket: Exception of … Continue reading Cannot Sign-in to Office 365 in SfB Control Panel – Exception of type ‘Microsoft.LiveID.IDCRL.IDCRLException’ was thrown →