Hi, Timothy:

We started seeing this problem ("requesting data from MS Exchange
server..." a/k/a "the RPC dialog box") when we were migrating from 5.5 to
E2k.  When we went native, it has diminished however it would pop-up once
in a while for one whole set of users in one AG.

With PSS's help, we were able to determine that:
1. some GCs, while defined as GCs, may not be seen by E2k servers as
"advertised" GCs.  See 247811.
2. Outlook versions differ in the manner that they connect to GCs
3. if you're getting event 2080, check out 316300
4. understand the concepts of a "working" GC and how roles are assigned
5. use tools:
http://www.microsoft.com/Exchange/Media/ExchangeCalculator.htm

Not a simple task as you can see and always worth a call to PSS.

Good luck!
-Juancho

> Hi There,
> 
>   I have a wierd issue and if anyone has any possibly explanation by all
> means feel free to post.
> 
>   We have 4 AD serviers in our environment to date. All of the are Running
> SP3 on them and we have many Exchange 2000 servers as well. Sometimes (not
> on regular intervals, just randomly) the outlook clients we have all of a
> sudden cannot get their email and the 'finding exchange server' dialog
> pops up on outlook 2002.
> 
>   Even if you bail out of the client and try to go back in, you get the
> same windows and then a failure to login. So I check the Exchange server.
> It is running fine and everything is clam. No strange processes and even a
> network scan reveals nothing unusual.
> 
>   There are no event log entries either. I check the AD to make sure its
> ok and I can login via LDAP and Global Catalog ports without any issues. I
> can query users and use the MMc snapin for management of the AD.
> 
>   The server also has no strange processes running on it and its also
> calm. After finding nothing on a gut instinct I just restart the
> 'Netlogon' service and bang! everything returns to normal.
> 
>   What could be the issue? its happens randomly and sometimes it can go
> for day or weeks without happening. Thsi has happened now 2 times within a
> week and now has me and the executives worried about the stability of the
> system.
> 
>   Any help would be greately appreciated.
> 
> -Timothy

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