Iphone exchange activesync contacts

OctaviaIS used Ask the Experts™
We have a SBS server 2003 with ActiveSync setup for exchange, several users have iphones using this. They are sync'ing there outlook contacts, calendar and mail.

When the server goes offline is it normal behaviour for there contacts to get wiped from the iphone?

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The contacts are synchronised with the handheld and should be available if the server is offline or the handheld has no service like when in airplane mode, so no this is not normal behaviour


Is there a way to fix this then?


The contacts seem to be availiable in airplane mode.
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This is really not normal behaviour. Can you please confirm that the iPhone is running the latest firmware and that SBS is fully patched.
Also could you try the active sync test @ www.testexchangeconnectivity.com and post the results..
In the mean time I will have a little think..!


Thanks for the response just checking the points you mentioned above now.



Testing Exchange Activesync for host https://office.dixonjones.co.uk/Microsoft-Server-Activesync/

       Exchange Activesync test Failed
Test Steps
Attempting to Resolve the host name office.dixonjones.co.uk in DNS.
       Host successfully Resolved
Additional Details
       IP(s) returned:

Testing TCP Port 443 on host office.dixonjones.co.uk to ensure it is listening/open.
       The port was opened successfully.

Testing SSL Certificate for validity.
       The certificate passed all validation requirements.
Test Steps
Validating certificate name
       Successfully validated the certificate name
Additional Details
       Found hostname office.dixonjones.co.uk in Certificate Subject Common name

Validating certificate trust for Windows Mobile Devices
       Certificate is trusted and all certificates are present in chain
Additional Details
       Certificate is trusted for Windows Mobile 5 and Later platforms. Root = E=server-certs@thawte.com, CN=Thawte Server CA, OU=Certification Services Division, O=Thawte Consulting cc, L=Cape Town, S=Western Cape, C=ZA

Testing certificate date to ensure validity
       Date Validation passed. The certificate is not expired.
Additional Details
       Certificate is valid: NotBefore = 4/14/2008 5:00:00 PM, NotAfter = 4/15/2011 4:59:59 PM

Testing Http Authentication Methods for URL https://office.dixonjones.co.uk/Microsoft-Server-Activesync/

       Http Authentication Test failed
Additional Details
       An HTTP 403 forbidden response was received. The response appears to have come from Unknown. Body is: <body><h2>HTTP/1.1 403 Forbidden</h2></body>

Server is all patched up and Iphones are running 3.0
Ok a couple of ideas...

Are you using Forms Based Authentication for OWA? If so then have a read of this great guide from Petri..

and / or, can you check in IIS under the directory security tab for the two virtual  directories called "Microsoft-Active-Sync" and "OMA"
Under the IP address restrictions, confirm that there are no IP addresses listed as "refused" and if there are any you can remove them.

If you are using Forms Based Authentication for OWA or have SSL enabled on excahnge virtual directory in IIS manager can follow kb-817379 & create exchange-oma virtual directory

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