OWA prompts for login multiple times when accessing over secondary NIC???

Dear All

I have a virtual server running on Virtual Server 2005 R2 with the following installed:

Windows Server 2003 Std Ed. SP2
Exchange 2003 SP2 + vista OWA hotfix
Active Directory (it is a domain controller).


Primary network adapter on internal network
Secondary network adapter connected to external network.

When I access OWA on the server itself I am prompted once for login credentials, without any problems.

When I access OWA from my external network with the IP address of the secondary adapter, I am prompted for login credentials multiple times. Eventually I can get into OWA and it stops prompting for credentials.

Is there anything I need to configure within IIS or Exchange or should OWA be happy to work on multiple IP's out of the box?

Many thanks

Conrad

.

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