We have a application that uses PSExec to execute some commands on a remote Windows Server 2008 (non-domain in the cloud) machine. It has been working smoothly for over a year now and a couple of days ago it has randomly stopped working. Diving into it further, it looks like it is a problem with Windows 2008. I can run PSExec from a command window from my Windows 7 machine to the same machine and it works fine. I have also ran it from a windows 2003 machine and also worked fine, although running it from other Windows Server 2008 machines gives and Access Denied. Running PSExec from a Windows Server 2008 to a different Windows 2008 machine in the cloud works fine. These are all running as Administrator.
I am out of ideas. Any help would be appreciated,
Kent