IPnat.sys issue

Hell all,

We have a problem with the backup of client 'bns39'.

savegrp -vvvv -c bns39 BACKUP_MOENTANEO_DIRECTO shows the following error:

...
* bns39:C:\ C:\Inetpub\wwwroot\iuident.cab
* bns39:C:\ C:\Inetpub\wwwroot\
* bns39:C:\ C:\Inetpub\
* bns39:C:\ C:\Sistemas_NO_BORRAR\Backup Base Datos de Panda\Backup
* bns39:C:\ save: RPC error: Unable to send
06/19/06 11:51:12 savegrp: bns39:index started

In daemon.log:

06/19/06 11:39:22 nsrd: savegroup info: starting BACKUP_MOENTANEO_DIRECTO (with 1 client(s))
06/19/06 11:39:22 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:39:29 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:39:31 nsrd: bns39:SYSTEM DB:\ saving to pool 'BN' (BUB524S)
06/19/06 11:39:31 nsrd: bns39:SYSTEM STATE:\ saving to pool 'BN' (BUB524S)
06/19/06 11:39:31 nsrd: bns39:ASR:\ saving to pool 'BN' (BUB524S)
06/19/06 11:39:45 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:39:46 nsrd: bns39:C:\ saving to pool 'BN' (BUB524S)
06/19/06 11:40:36 nsrd: bns39:ASR:\ done saving to pool 'BN' (BUB524S) 1189 KB
06/19/06 11:40:42 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:40:50 nsrd: bns39:SYSTEM STATE:\ done saving to pool 'BN' (BUB524S) 27 MB
06/19/06 11:40:55 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:43:03 nsrd: bns39:SYSTEM DB:\ done saving to pool 'BN' (BUB524S) 349 MB
06/19/06 11:43:08 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:47:12 nsrd: bns39:C:\ done saving to pool 'BN' (BUB524S) 830 MB
06/19/06 11:48:09 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:51:12 nsrd: savegroup info: BACKUP_MOENTANEO_DIRECTO running on bns39
06/19/06 11:51:12 nsrd: ariadna-clus.bne.es:index:bns39 saving to pool 'BN' (BUB524S)
06/19/06 11:51:17 nsrd: ariadna-clus.bne.es:index:bns39 done saving to pool 'BN' (BUB524S) 644 KB
06/19/06 11:51:17 nsrd: savegroup alert: BACKUP_MOENTANEO_DIRECTO completed, total 1 client(s), 0 Hostname(s) Unresolved, 1 Failed, 0 Succeeded. (bns39 Failed)

When we check the state of the Windows 2003 firewall, the following alert appears:

It is not possible to run Firewall of Windows because it is possible that another program or service is using the component of translation of network address(Ipnat.sys).

Any idea?

Thanks in advanced!