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exchange 2003 active sync only works when set mail days to sync to 1 day

hello guys,

i have 2 exchange 2003 SP2 Backends and 1 exchange 2003 SP2 Front end. most of my users are able to synchronize their mobile devices with no issues but expect 2 of them. when i try to synchronize their devices they fail and the only work around is to set mail days to sync to 1 day and then they start working. They are both receiving the error "500" in the IIS logs. i'm trying to find out the root of the problem, any help will be appreciated.

2014-01-28 02:31:23 W3SVC1 192.168.5.25 POST /Microsoft-Server-ActiveSync User=username&DeviceId=ApplF2PJM3WK&DeviceType=iPhone&Cmd=Ping&Log=V4TNASNC:0A0C0D0FS:0A0C0D0SP:1C1I471S912R0S0L0H0P 443 domain\username 166.111.111.70 Apple-iPhone5C1/1102.55400001 500 0 0

2014-01-28 02:34:44 W3SVC1 192.168.5.25 POST /Microsoft-Server-ActiveSync User=username&DeviceId=ApplF2PJM3WK&DeviceType=iPhone&Cmd=Ping&Log=V4TNASNC:0A0C0D0FS:0A0C0D0SP:1C1I471S912R0S0L0H0P 443 domain\username 166.111.111.70 Apple-iPhone5C1/1102.55400001 500 0 0

2014-01-28 02:40:53 W3SVC1 192.168.5.5 POST /Microsoft-Server-ActiveSync User=username&DeviceId=ApplF2PJM3WK&DeviceType=iPhone&Cmd=Ping&Log=V4TNASNC:0A0C0D0FS:0A0C0D0SP:1C1I471S912R0S0L0H0P 443 domain\username 166.111.111.70 Apple-iPhone5C1/1102.55400001 500 0 0
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Cholo123
Asked:
Cholo123
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1 Solution
 
Simon Butler (Sembee)ConsultantCommented:
In my experience the Apple devices do not play well with the Exchange 2003 ActiveSync, and I would suggest an upgrade of Exchange to a later version.
Ensure that the device is on the latest iOS available.

Have you reset the ActiveSync profile?

Simon.
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Cholo123Author Commented:
when you say reset the activesync profile what do you mean?

also exchange 2003 is running with iis 6.0 do you think the issue is with iis 6.0 or exchange 2003?

the only option i guess is upgrade to exchange 2010 which uses iis 7.0 i believe.
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Simon Butler (Sembee)ConsultantCommented:
The version of IIS is completely immaterial. That is controlled by the version of Windows, nothing to do with Exchange. Exchange 2010 on Windows 2008 would use IIS 7, on 2008 R2 it would be IIS 7.5, but you cannot change the version of IIS used.

By resetting the ActiveSync profile I mean removing the account from the device.

Simon.
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Cholo123Author Commented:
yes i tried that. i will jsut upgrade to exchange 2010 thanks for the help.
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Cholo123Author Commented:
I've requested that this question be closed as follows:

Accepted answer: 0 points for Cholo123's comment #a39869237

for the following reason:

i had to upgrade to exchange 2010 to resolve the issue.
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