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OWA not working from outside but OK internally after adding 2nd Exchange Server

Posted on 2008-10-30
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Last Modified: 2012-05-05
I am testing a migration of Exchange 2003 from a previously upgraded SBS 2003 ( now win 2003 Std via transition pack )

I need to remove the Domain controller from thi original exchange box so I am migrating the exchange to another temporary server, wiping the original box ( Exchange and BES server ), and reinstalling from scratch, and migrating the exchange back, and reinstall BES.
This is only for < 50  users.

I have a test lab and migrating the Exchange to the new Exchange server went fine except for OWA externally.

I then recreated the original server  ( win 2003 STD, and exchange 2003 SP2 )and started migrating exchange to it.
Migrated 3 accounts, and tested OWA, and it does not work.

Router settings are OK, as this worked before on the same original IP, and I had mail working on the 2nd Exchange, with just port forwarding changes.

The problem is I do not even get a login prompt from the external users, although pinging works fine.
FF and IE say server  network timeout or can not be found . Tried both http and https
http://servername/exchange/ 

Same on both servers.

IE does show connecting to the correct IP address on the status bar.

I have checked some similar situation on EE and MS
http://support.microsoft.com/default.aspx?kbid=883380 

but I am not sure if it applies since all is OK internally.

Some stuff I have checked
I changed the Default Domain name in Access -authentification of the Exchange Virtual Server properties, since it had the shortname alias there.

I tried comparing the working server with the Lab setup, but there are strange reisdues form the SBS transition.

Anything I can check or try to fix this ?

Thanks !
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Question by:SysExpert
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epohl earned 500 total points
ID: 22844931
If it works outside but not inside almost has to be a firewall thing. Can you try accessing a static html page on that server just to verify port 80 is being directed to the correct server.
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by:epohl
ID: 22844942
Revere that works inside but not outside. Hit and html page from outside using http and https just to verify it works.
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by:SysExpert
ID: 22851995
I restored to a previous image, and I was prompted for a certificate on a Public folder, so that means at least the routing appears OK

Any other suggestions ?



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by:SysExpert
ID: 22852643
Old image of computer works OK including Mail and public, so this is definitely not a router issue.

Sembee - Where are you ?
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by:SysExpert
ID: 22868801
OK , the issue appeared to be related to the netscreen firewall. It is blocking port 80 apparently, As soon as I installed a certificate, I could use SSL and port 443 which is what I need.

Thanks !
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