Exchange 2010 ActiveSync not working externally [message #114371] |
Sat, 21 June 2014 22:26  |
Wout
Messages: 34 Registered: November 2010 Location: Belgium
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Hello all,
Got an issue for several days now and it's making me go crazy .
The problem is that the service Active-Sync is working perfectly within the local network (Phone -> internal IP of Exchange)
When we try to connect externally, the phones get the following message:

The strange thing is that this worked for over more than 2 years!
In Kerio Control I have the same single rule that works:
See next post.
And on top of that, I can see the connection active for a few seconds in connection log:
See next post.
On the other hand, when I check the even log of the Exchange server, I notice a rather bizar even:
Next post.
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