Hi Guys, I have a very strange issue with UAG2010 and Exchange 2010.

I have new installation of Exchange 2010 and 2 new UAG 2010 servers, followed all the instruction from the Microsoft documentation. To summarize the configuration part in UAG;

Step 1

I create a new trunk with Publish Exchange marked. --> Selected only OWA --> Finished configuration and reactivated

Test OWA trough UAG with Internet Exploer and it works fine.

Step 2

I added Outlook anywhere and Exchange Active Sync --> Fished configuration and reactivated. --> Did all the nececairy steps in Exchange.

Test Exchange trough the UAG with testexchangeconnectivity.com, all is green, no problems there.

Test OWA with Internet Explorer and it fails.

I keep getting :You cannot get access this site due to an internal error, so I do not even get the option to enter username or password. In the web monitor I get event 14 (missing credentials) Strange thing is when I test OWA with Chrome or Firefox I do get the logon screen and can login successfully.

Applications IN UAG portal

Created with step 1

Portal and Web mail (OWA)

Created with step 2

Exchange EAS en OA

Exchange EAS and OA Autodiscover

Exchange EAS and OA - EWS

When I disable, Exchange EAS and OA Autodiscover, OWA works fine with Internet Explorer.

Hope someone can help me out with this strange behavior.

Hello,

Did you follow all the steps from this whitepaper http://blogs.technet.com/b/exchange/archive/2010/07/16/3410408.aspx ?

When you got the internal error try on IIS to delete the portal web site folders and reactivate the UAG configuration to be sure that all the objects pushed on IIS are consistent.

Regards

Yes i did everthing, and OWA works fine trough the UAG as long as I don't enable the autodiscovery part on the UAG.

When you got the internal error try on IIS to delete the portal web site folders and reactivate the UAG configuration to be sure that all the objects pushed on IIS are consistent.

And how about this ?

Regrads,