RPC Exception - Help

Hi, I am trying to use swremove to remove some old software packages before an upgrade. I keep getting the same error below. I have restarted swagent, i have killed the swagent process and started it, and I have restarted the entire system. I have now run out of ideas. Anyone know what the problem might be. I really appreciate your help.

======= 08/21/06 11:56:37 EDT BEGIN swremove SESSION
(non-interactive) (jobid=lincs01-0047)

   * Session started for user "root@lincs01".

   * Beginning Selection

ERROR: RPC exception: "Communications failure (dce / rpc)" 08/21/06
11:58:28 EDT
ERROR: A Remote Procedure Call to a daemon has failed. Could not
start a management session for "lincs01:/". Make sure the
host is accessible from the network, and that its daemon,
swagentd, is running.
* Target connection failed for "lincs01:/".
ERROR: More information may be found in the daemon logfile on this
target (default location is lincs01:/var/adm/sw/swagentd.log).
* Selection had errors.