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Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

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  • Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

    Hi all,

    I find this a strange one. My Remote mail access is working absolutely fine via both RPC over HTTPS through Outlook and via Direct Push on my Windows Mobile phone.

    However, I recently decided to try and resurrect my old Windows Mobile PDA (O2 XDA IIi, HTC Alpine, WinMo 2003SE) to use as an incoming IP Phone. The device unfortunately does not support WPA/WPA2 - even when using the Odyssey Access Client, so it must be a Driver-level issue.

    So, with that in mind I dug out my old USB Wifi-b adapter and installed it on the Server. I setup an Ad-Hoc network secured with WEP (I know it's bad, but at the moment it is only for testing and is not running 24/7 - in fact has not been on since this problem occurred.) When the phone connected and I had tested it and was happy, I left as is for a few hours or so until I noticed my phone was no longer connected (via GPRS) to the Exchange Server and could not connect when I hit the Sync button.

    I disabled the Ad-Hoc WLAN, disabled the Adapter and unplugged it - and bingo - the phone reconnected and some emails got pushed through. This made me wonder if Exchange is getting confused between the WLAN which is purely incoming for the IP-Phone and it's normal LAN connection? Or could it be any number of things?

    I'm more curious about this one rather than desperate for a solution

    Thanks,

    Karl

  • #2
    Re: Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

    Any ideas for this one?

    Comment


    • #3
      Re: Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

      Given the age of the question, if someone had an idea, they would have posted.

      I for one, would never run an ad-hoc network anywhere near a network. Stick the card/stick in to a workstation and use a tool to turn it in to an access point.

      Simon.
      --
      Simon Butler
      Exchange MVP

      Blog: http://blog.sembee.co.uk/
      More Exchange Content: http://exchange.sembee.info/
      Exchange Resources List: http://exbpa.com/
      In the UK? Hire me: http://www.sembee.co.uk/

      Sembee is a registered trademark, used here with permission.

      Comment


      • #4
        Re: Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

        Originally posted by Sembee View Post
        I for one, would never run an ad-hoc network anywhere near a network. Stick the card/stick in to a workstation and use a tool to turn it in to an access point.
        Surely doing that defeats the object - an IP Phone needs network access to work? Or have I misunderstood what you mean Simon?

        Cheers

        Karl

        Comment


        • #5
          Re: Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

          No, he means to make a proper "infrastructure" network, either by using a WAP or by a PC's WiFi Card but with additional software to change it from Ad Hoc to Infrastructure.

          Given a cheap WAP costs about $50, it is difficult to see how spending more than a very few hours on a workaround makes any business sense.
          Tom Jones
          MCT, MCSE (2000:Security & 2003), MCSA:Security & Messaging, MCDBA, MCDST, MCITP(EA, EMA, SA, EDA, ES, CS), MCTS, MCP, Sec+
          PhD, MSc, FIAP, MIITT
          IT Trainer / Consultant
          Ossian Ltd
          Scotland

          ** Remember to give credit where credit is due and leave reputation points where appropriate **

          Comment


          • #6
            Re: Exchange AS on Mobile stops working when running Ad-Hoc WiFi on Server

            To be honest, what I actually meant to say was:

            "I for one, would never run an ad-hoc network anywhere near a server."

            Although what I wrote makes sense as well as I wouldn't run ad-hoc anywhere. Ad-hoc is basically for point to point networking and the different OS react in different ways.

            Simon.
            --
            Simon Butler
            Exchange MVP

            Blog: http://blog.sembee.co.uk/
            More Exchange Content: http://exchange.sembee.info/
            Exchange Resources List: http://exbpa.com/
            In the UK? Hire me: http://www.sembee.co.uk/

            Sembee is a registered trademark, used here with permission.

            Comment

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