Remote installtion fails

Hi every one
I'm using trial verion of the Acronis Echo Server for windows ver 9
When I try to install acronis agent remotely an error pops up and says remote installation fails cannot find the file specifed.
and options are: Retry, Ignore, Ignore all, cancel, other user
but, the location: \\workstation\admin$ is reachable and acronisagent.msi is exists on that.
BTW, this problem accoured when i reinstalled the domain controller , I have also reinstalled the whole acronis packages too.