Exch. 5.5 to 2000 migration problem

[Althor33]

I'm trying to upgrade my Exchange 5.5 mail system to
Exchange 2000.
Here's the situation:
Server A - Exchange 5.5 SP4, NT4.0 SP6a, PDC mixed mode

Server B - W2K server SP4, member server

Installed ADC on Server C - W2K SP4 - GC, DC mixed mode

No problem connecting and doing the schema update with
setup.exe /forestprep and /domainprep on Server B.
All users now have Exchange attributes

When installing final setup on Server B, while installing
the Site Replication Service, error 0xC1030B11 (2883)
occurs. Not documented at Microsoft.

All normal Ping (netdios, FQDN) all ok.
DNS entries Ok.

Entries in registry for RPC on both server ok (Q325930)

Tested RPING from ServerA to ServerB. All is well.
(Q175496)

When analyzing Exchange RPC traffic (Q159298) MTA
connection binds from Server B to Server A but not from
Server A to Server B. So this must be the problem...

Only remaining question: How to solve it ?
Any ideas, anyone ?

Thank you.

 

[Althor33]

Hello all,

After many calls to Microsoft and testing and trying I finally was able to install Exchange 2000.

The issue was on the Exchange 5.5 box.
For some odd reason (still trying to find why) two registry keys for the RPC port on TCP/IP were statically mapped.

After removing the two keys (making a copy first!), I retried the Exchange 2000 install and it worked just fine. Now both the 5.5 and 2000 live in a happy world.

The two keys are:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeDS\Parameters\TCP/IP port

and

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeIS\ParametersSystem\TCP/IP port

Just remove the two TCP/Ip port and restart the DS service.

Hope this helps someone, someday....