Altiris CMS 7.1 unable to pcanywhere to Client machine on AD

Hello

     Currently have Altiris CMS 7.1 installed in a non-active directory environment.  We are planning to migrate our workstations to active directory.  When I added a couple of test workstations to our new AD environment I was no longer able to remote into those workstation via pcanywhere.  I was able to remote control before I put the workstations onto AD.  I tried using AD credentials but still unable to remote in.  Tried a search on the forums can't seem to find a specific thread regarding this issue.  Does my Altiris CMS 7.1 setup need to be on AD?

Thank You
John H