Hello Shahram,
I am sorry that I didt not understanf the issue you have..
Please let me know more about the same.
Do you mean that Once you have the client installed it shows Waiting for Updates for days...untill you login as an Admin..?? or you just keep it under observation for few mins and then you login as an Admin to check if that works...!!
The reason I am asking you this is, as Manish said, the client package would have old definitions of when the package was created and hence it will take some time for the SEP client to take the updates. If the package that you have deployed has very old definitions then it needs to download a full update which would be around 180 to 200 Mb in size and this will take a longer time.
Please correct me if I am wrong..
--Cheers--