Unable to login to office 365 using federated identity

Hi ,

I have configured Office 365 with my ADFS 2.0 . I have installed the domain controller also on the ADFS machine and joined a windows 7 computer with this domain. When I access the Microsoft Online Portal (portal.microsoftonline.com) from domain joined machine and enter the federated ID then It redirects me to the ADFS page rightly. But when I enter the Active directory credentials then It does not accept.

But the same credentials work on other machine which is not domain joined.

Can you tell me why it is happening that working on non domain joined computer and not working on domain joined computer.

thanks,

hitesh