Also make sure that you can do a successful nslookup against the reverse ip 
address of the client from the backup server.  I've run into issues like this 
when there wasn't a reverse dns entry for the client in dns.

-----Original Message-----
From: EMC NetWorker discussion [mailto:NETWORKER AT LISTSERV.TEMPLE DOT EDU] On 
Behalf Of STANLEY R. HORWITZ
Sent: Tuesday, December 07, 2010 8:11 AM
To: NETWORKER AT LISTSERV.TEMPLE DOT EDU
Subject: Re: [Networker] backup failing with Cannot determine status of probe 
process

Whenever I see that type of error, I recommend rebooting the client.

By the way, in case you are not aware of it, NetWorker 7.4.4 is no longer 
supported by EMC and Windows 2000 is no longer supported by Microsoft.

On 12/7/2010 7:59 AM, "kurtica" <networker-forum AT BACKUPCENTRAL DOT COM> 
wrote:

>Hello
>
>we have a problem with backup of one client. It suddenly starts failing 
>altough there was no change neither on client nor backupserver. Log 
>file
>says:
>
>Cannot determine status of probe process.  The log file is empty.
>
>When trying manual backup from server, probe is hanging and ends with 
>same error.
>Backup from client is running ok.
>
>Connection from backupserver to client seems to be ok too. we can ping 
>it, telnet it, we get nsrports range, rpcinfo from server to client is 
>working.
>
>backupserver is SunOS with 7.4.4 networker, client is windows 2000.
>
>Any ideas?
>
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