Acronis Echo Server "Logon Failure"

I had use Acronis Enterprise Server before properly without problem.I ve just buy Echo server which is the newest version.While i try to send Acronis Components to a remote computer i got an error message about "login failure"
But i m a domain admin.I try to type IP adress instead of Computer name but got same error.After i started manually the service of Acronis at the client side .... tried to make service as Network Service and start again...Closing Windows Firewall and check Local Security Policy of Network Acess(Security of sharing for Local Accounts)(Classic).At the end of my test i tried to install agent manually to the computer.But i got same error message."Logon Failure"
Please give me a solution.

Thx