Cannot discover 9iAS/817db nodes

I have configured two servers each running Windows 2000 Server SP1, Oracle 8.1.7.1.5 EE, and Oracle 9iAS 1.0.2.2.
I followed the Confiuration guide "A Step By Step Guide to install Oracle8i Rel 3 (V8.1.7) and Oracle9iAS Rel1(V1.0.2.2) On Windows NT" from Metalink for this installation.
I want to use OEM to administrer the 8i databases.
I've ensured that the Oracle 8.1.7 Home Agent is running on both machines, but I cannot discover the nodes with OEM.
I can connect to them via SQL*PLUS and DBA STUDIO.
Have checked to make sure tnsnames.ora in all homes include the machines. Both machines reside on the LAN under the same domain as the OEM console and management server.
Have tried manually configuring the nodes.
Thanks in advance!
Dan

I'll answer my own question. The 'Static' IP addresses that the LAN guys gave me were also being served up by DHCP. Strangely, though, 9iAS and the database functioned fine in this situation. Only the OEM discoverer choked on it. Everything works fine now that I've gotten real static IP addresses. OEM Discoverer found the nodes immediately.

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