Error inventoring machines RPC_E_CALL_CANCELED

[Sistemas-IT]

Hello;

I'm checking inventory errors and there are too much machines whit this error:

Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED)) DO19909 (IP_ADDRESS) 30/06/2010 12:54:45
Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED)) DO19909 (DO19909) 30/06/2010 12:54:45
Call was canceled by the message filter. (Exception from HRESULT: 0x80010002 (RPC_E_CALL_CANCELED)) DO19909 (do19909.domain.local)

I've checked, firewalls, enabled ports, permisions, name resolve and IP resolve, also I've tried with WMI repair script...all items that may cause this error, also I tried to inventoried with LSCLIENT but the machine gets the same error. What else can I do? why these machines fail?

Any help is welcome, I'm lost and I need to have these machines in inventory before next friday.

Thanks

[Hemoco]

Most common cause is a third party firewall (cisco client,...) or a really bad network connection.