SEPM 11.0.7101.1056 Stuck Update Virus Definitions On 12/01/2014

Dear All...

I Have problem again , Please help me

My sepm cannot update virus definition. Virus definition stuck on 12/01/2014.

as information, SEPM client has a number of 4038 Client. Managed within a single management server, to update the client using the GUP.

I include screen shoot for this case

Thanks,

Helmy