Window mobile 6 with active sync

Hi, My client has Treo 800w with window mobile 6. I am trying to setup Active sync to sync directly with Microsoft Exchange server 2003 and I cannot. I am constantly getting the following error code (support code: 0x8503001C). I have a wtchguard firewall installed. Is there a port I have to open to let this communication pass through.



Thanks a lot
mattkiranAsked:
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mattkiranAuthor Commented:
Hi jckingjc,

              I tried and I am able able to sync only email and nothing else. My Treo crash if I try to sync contacts or calendar. any idea?
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jckingjcCommented:
Hi mattkiran,

Do you have a WMDC 6.0 or WMDC 6.1? Apparently some PC having sync problem with WMDC 6.1. Try to uninstall 6.1 and downgrade it to WMDC 6.0 and see how it goes.
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mattkiranAuthor Commented:
Hi, I do have Windows mobile 6.1. I am sorry it might sound stupid but how can I downgrade it to 6.0. Can I do it right from My Treo 800w ot I have do it through USB Cable connected to my PC Thanks.
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mattkiranAuthor Commented:
Hi jckingjc, I just tried my exchange server in my office and configured Active Sync on same phone and it works fine but the moment I try to Sync with my client's Exchange server it only syncs email nothing else. You think it has something to with My client's exchange server ? Thanks a lot for your help.
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mattkiranAuthor Commented:
Hi,  Just so you know that sprint won't allow me to downgrade it to 6.0
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O2JamesCommented:
Be VERY careful downgrading your operating system, apart from the fact if you don't know what your doing you can brick your handset alot of companies will void your warrenty if you change the OS.
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jckingjcCommented:
Hmm, Strange.

But anyway can you try to uninstall your 6.1 version of mobile 6 and install 6.0 version? And see if you can get calendar and contact works on your client side?

About how to do this....

Do you connect your client's Treo 800w smartphone with your laptop or PC? try to uninstall the WMDC 6.1 on your computher and install 6.0 version.....

But be careful when you setup the new server profile in WMDC6.0... untick over write and replace option. Otherwise the contact list in your mobile will gone.... I did it last time ... Awwww.....

Good luck.
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jckingjcCommented:
Hi mattkiran,

Read this tutorial and hints for "How do I downgrade WDMC 6.1 back to WDMC 6.0"

https://forums.microsoft.com/WindowsMobile/ShowPost.aspx?PostID=3932476&SiteID=65

Good luck.
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jckingjcCommented:
By the way, To O2James, please read the comments carefully and dont post if you are not sure the situation. We are tring to downgrade a mobile software on PC but not a OS on smartphone. Thanks.
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O2JamesCommented:
I did misunderstand the qutestion but would still like to point out the warranty issue if you have a extended warrenty etc generally these are voided even with PC, tablets, handhelds etc
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mattkiranAuthor Commented:
Thank you gentlemen,
jckingjc, i am  going to read the article and follow the instruction. I will get back to you soon. Thanks a lot guys. You have been great. Its worth every penny joining this forum.
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mattkiranAuthor Commented:
Thank you everyone. This is a great forum and great bunch of people eager to help.
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jckingjcCommented:
Glad to help~~
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