I think that I found the bottleneck. Some of the users have an additional
addressbook attached. One of those addressbooks has over 20'000 contacts.
Once I connect this addressbook, also my outlook has a long time until I
receive a result. If I disconnect this addressbook, the name resolution works
perfectly fine.
"neo [mvp outlook]" wrote:
> Anything in the event logs of the workstation to indicate an issue with the
> network card, dhcp lease renewal, .etc?
>
>
> "Adispi" <(E-Mail Removed)> wrote in message
> news:2FFB2F0C-0EF3-4B50-953A-(E-Mail Removed)...
> Everyone has the same type of network connection (wired). There are a few
> users (Laptop) who use the cached mode but the most of them do not use the
> cached mode. The two stations (users) I am comparing to find out the mistake
> do not use the cached mode. I activated the cached mode once in both
> profiles, but the behavior was the same. Also, both machines are in the same
> subnet. Outlook is updated correctly and identically on both stations.
> Exchange Server is also up to date and does not show any related warnings or
> errors. Additionally, both clients have the same add-ins. Any hints?
>
> "neo [mvp outlook]" wrote:
>
> > Not enough information... for example, everyone have the same type of
> > network connection (e.g. wired, wireless, .etc) to Exchange? Is everyone
> > in
> > cached mode? Is everyone connecting the same way (e.g. TCP or RPC/HTTPS)?
> >
> > "Adispi" <(E-Mail Removed)> wrote in message
> > news:C9D483F8-FACE-4026-A9A0-(E-Mail Removed)...
> > Hello
> > If some of our workers type a wrong name in the two field of a new message
> > and than click on check names, Outlook is blocking for up to 30 seconds.
> > Sometimes even the message pops up, that the connection to the Ms Exchange
> > Server has been lost.
> > Other users, including me, do not experience the problems but the
> > installation is the same.
> > We have an Exchange Server 2003 and Office 2003.
> > Thanks for your help
> >
> >
>
>
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