Whenever we try to do a remote execute or file transfer, we get the
following error:

1899. The connection with the Remote Management Agent is terminated.

Remote control and remote view work fine. Running Zfd 6.5

These features were working just fine and then one day, just stopped
working (no patches applied to anything). We also followed TID 10094325
and repatched Zen with SP2. Still no help. Any ideas out there or is it
time to open an incident?