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AnswerISA 06, Exchange 07 OWA & Win2k8

  • Friday, October 09, 2009 3:40 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    I have a problem when I try to access OWA it doesn't let me in. But if i ping my exchange server then try OWA it works fine. It's the strangest thing. If I try to log the traffic on the ISA server I don't see traffic until I ping the server first.

    After about 3-5 minutes of an idle connect to reverts back to not working then I have to ping it again.

    Ideas?

    Thanks
    -B

Answers

All Replies

  • Friday, October 09, 2009 7:49 PMMarc.GroteMVPUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Hi,

    which guide did you use as the reference?
    Here is a good ref:
    http://technet.microsoft.com/en-us/library/bb794751.aspx
    http://www.msexchange.org/tutorials/Publishing-Exchange-2007-OWA-ISA-Server-2006.html


    regards Marc
    www.nt-faq.de
    www.it-training-grote.de
    www.forefront-tmg.de
  • Friday, October 09, 2009 8:08 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Marc, I had followed your guide. Only difference is I'm using a signed SSL from godaddy. The weird thing is I have no problems with activesync. If you have any other suggestions please let me know.

    Thanks,
    -Bryan
  • Sunday, October 11, 2009 10:53 AMKeith AlabasterMVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Bryan, Is this just for external access?  ie if you attempt OWA access from within the network are you seeing the same symptoms?
    Can you confirm you have both the ISA2006 supportability update and the ISA2006 sp1 applied?
  • Monday, October 12, 2009 12:37 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Keith,
    This only happens for external access. Yes both the supportability and SP1 are install. I did try changing the external IP on a fluke chance it was related to that, but same problem new IP. I was also wondering if it was Windows 2008 firewall related but I turned it off and still get the same results. I have to ping the server before I can access owa externally.

    Thanks,
    -Bryan
  • Tuesday, October 13, 2009 5:44 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    My ISA 2006 is a two NIC setup and the external NIC has multiple IP's assigned. I didn't think it would matter but do I need to setup something extra? When I created the rules I setup the external network and assosiated said IP for OWA; I did the same with the listener. This is driving me crazy. Any help pointers or suggestions.

    Thanks,
    -Bryan
  • Tuesday, October 13, 2009 6:28 PMKeith AlabasterMVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Everything else works OK continually? RWW? SMTP? IIS?
    Anything else that is a published service on this connection?
    Anything popped out from the BPA?
    Is it just you having the issue with OWA or all users?
    Anything noticed in the isa gui - monitoring - alerts tab?
    Anything in the Exchange logs?


  • Tuesday, October 13, 2009 8:35 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Everything else works ok continually.
    Exchange 2007 is the only thing published on this IP.
    I will check BPA; haven't yet.
    We only have a few users on the Exchange 2007 OWA and all users get the same result.
    Nothing shows up in the Monitoring / Logging until I ping the server or try to connect to owa multiple times.
    Alerts tab doesn't show anything that would point to a cause.
    Again same in the logs I don't see anything until it connects or ping the server.
  • Tuesday, October 13, 2009 8:37 PMKeith AlabasterMVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Just a quick check based on your comment, do you have only ex2007 or are you using ex2003 servers in the same exchange group? ie publishing owa from ex2003 as well?
  • Tuesday, October 13, 2009 11:42 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    We have both ex2k3 and ex2k7 one of each in the same group.

    I also found that after running BPA I got this

    TCP Connections per Minute from One IP Address .... And it's pointing to the internal IP of the Exchange07 Server. Checked the server no viruses but looks like it opening random TCP connections on random ports in the 30000 range. I'm assuming this is why it's blocking the connection until I ping it. figure out how to stop or allow these connections and see what happens
  • Wednesday, October 14, 2009 1:36 AMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Corrected the issue above and still get the same results.
  • Wednesday, October 14, 2009 6:22 PMKeith AlabasterMVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Guessed as much - and you are publishing OWA from both? Is it the 2007 or the 2003 service that is giving you issues?

    I think the next step will be run a capture through the repro and see if we can determine what is happening.
  • Thursday, October 15, 2009 1:44 AMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    2007 is giving me the issues. I will run the repro and see what I come up with, and report back

    Thanks Keith,
    -Bryan
  • Friday, October 16, 2009 7:51 PMbsnyder-bscales Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     Answer
    Figured it out. It was a third part Traffic shaping application that was causing the problem. It was install on the ISA Server.
  • Friday, October 16, 2009 8:35 PMKeith AlabasterMVP, ModeratorUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
    Excellent Job Bryan - well done :)