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Active sync to mobile phones stopped working

Posted on 2013-11-18
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Last Modified: 2013-11-20
We moved a 2003 exchange email server to another location and changed the mx records to point to the new location.  The email and web email all are working.  I am getting a certificate error on the website and the mobile devices, however that does not seem to be the problem. The mobile phone seem connect to the exchange server and send back a message that the certificate has a problem. The name of the site does not match the name of the certificate. I say continue and then get unable to connect to server.
I go into iis Microsoft-server-activesync and when a change anything authentication methods I get different errors (this tells me that my phone is getting to the server).  The settings I have now in directory security and the authentication access control are basic authentication checked.
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Question by:DaveGerke
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6 Comments
 
LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39657927
If you are getting SSL errors then that is the problem - ActiveSync is very sensitive to SSL problems on most devices.
Is it a trusted SSL certificate? If not it should be. Have the host names involved changed?
If you browse from a desktop to the host name that you are using, do you get the SSL prompt? If so, look at the SSL certificate. Is it the correct one?

Simon.
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Author Comment

by:DaveGerke
ID: 39657957
We had ssl errors before I moved servers and webmail works with the DSL error. I have punted working on this and have paid Microsoft $300 to fix. Have been on phone for two hours
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LVL 63

Expert Comment

by:Simon Butler (Sembee)
ID: 39657963
Webmail will work with SSL errors, activesync cannot cope with the certificate prompts.
A trusted SSL certificate is $10, would save a lot of the hassles.

Simon.
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Author Comment

by:DaveGerke
ID: 39659550
Simon,
I was just going to use the built in certificates from exchange on the server.  I pay about $200 a year for SSL certs for other websites we have. Where can I get a $10 SSL cert.  Do I need to buy the cert for my website email address webmail.caregrp.com/exchange or my exchange server ZEUS?  Not sure how to install this and will need to do some reading.  Thanks for the help.
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LVL 63

Accepted Solution

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Simon Butler (Sembee) earned 500 total points
ID: 39664178
There is no need to pay $200 for a certificate.
You can get certificates for $10 from GoDaddy, which are trusted by most mobile devices. If you don't want the GoDaddy name on the certificate then find a reseller account - they use the same certificates just without the GoDaddy name.

On Exchange 2007 and higher the self signed certificates are not supported for use with ActiveSync.

Simon.
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Author Closing Comment

by:DaveGerke
ID: 39664201
This was helpful and I had Microsoft fix the problem that had to do with a internal IP number in my IIS owa granted access list. I just missed it when I moved the servers.  I was asking if the $10 certificate was a year term. I can find that all out by just visiting the site for go daddy or geotrust who I use now. I'm not sure why I am paying so much I will research.  I did not realize all SSL certificates were the same.  This was really a side conversation on my problem and I will give the points to this item which I need to address anyways to have a cleaner system.
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