Q: I can login Microsoft Skype in the office. But can’t login it at home. It popup saying incorrect username and password. I know I enter correct username and password. And I can login Office 365 at home without any issues.
Chicagotech.net: Assuming all settings are correct and MFA is enabled, you may need to generate app password. To do that, login Office 365. Click your name icon and select My Account. Click Security and Pravicy. and Then create and manage app password.