The Search Filter cannot be recognized. Try again later, or choose another DC by selecting Connect to Domain Controller on the Domain Context menu.

I created a group called sales in active directory administrative Center as well as created manually two users.. now inside of the active directory users and computers I'm receiving this dialogue...

"Data from Users is not available form Domain Controller because: 

The Search Filter cannot be recognized. Try again later, or choose another DC by selecting Connect to Domain Controller on the Domain Context menu."