1. Regnillop's Avatar
    I have 2 email accounts on my Z10 - one of my own mailserver (exchange 2008) and one Gmail.
    Both are working perfect with and withour WLAN connection everywhere...

    But if I am in my wlan where the exchange server is (10.0.0.x) synch stops on both. Browser and other data requireing programs still working.

    Has anyone a clue why it stops working?

    thx in advance
    04-03-13 02:17 PM
  2. Markus Schulz's Avatar
    Sounds like a simple DNAT/SNAT problem.

    To explain, I do imply something: you told the device in mail setup, that the exchange server is running at *external_ip" and it works. Questions at this IP on 443 will be passed to the server (you change the Destination / open Port on the Internet)

    Now you move into your LAN with the Exchange in the same subnet. Your BlackBerry knows he has IP 10.x.x.x and try to "Ask" the Exchange, burn is trying to connect to the given configuration of the account: the external ip.

    If there's not a rule for SNAT, it won't work. So you have to setup a small SNAT- rule managing that specific traffic.

    (Note: a lot of home user router doesn't have this feature in configuration I. But most of them can handle this issue in that way that they do this SNAT automatically And you don't need to worry abput)

    Posted via CB with my Z10
    04-03-13 04:21 PM
  3. Regnillop's Avatar
    Hmmm, sounds plausible to me. But why do gmail not working? Its extern...

    My first post was wrong - Gmail is not Activesync
    04-04-13 04:32 AM

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