When searching the remote node in OEM for ORACLE9i, i got the error VNI-4044, node may be down , network may be down or slow.

But I checked that the agent service is started normal in the remote node, and the network is normal too. However, I found the node name is change automatically from 's2000d'( i typed in) to 'is-s2000d' as shown in the error message.

What's the problem? pls advise.

Thanks in advance