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SYNCHRONIZATION: Microsoft ActiveSync 4.0 issue alert with Windows Mobile 5.0 devices
Posted by Arne Hess - on Thursday, 20.10.05 - 20:01:13 CET under 01 - General News - Viewed 16155x
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Microsoft wants to alert its Windows Mobile customers to an issue regarding ActiveSync 4.0 and the immediate steps the company is taking to resolve it and meet customer needs.

Specifically, some users of ActiveSync 4.0 have reported challenges when using the USB connection of their personal computer to connect to a device with Windows Mobile 5.0. In many cases, these challenges are likely caused by interoperability with desktop firewall applications or applications that manage network traffic. These applications appear to conflict with the TCP traffic between a device and the PC.

An update for ActiveSync is scheduled to be available in late November, but customers may also resolve the issue manually immediately by visiting

This issue only affects people with new devices just coming to market and running Windows Mobile 5.0 software and only when synchronizing directly to a PC when using a USB connection (wireless synchronization via Bluetooth, infrared or directly to a server or other services are not affected). In Europe, these devices include the iMate JasJar, iMate KJam, iMate SP5, T-Mobile MDA IV, T-Mobile MDA Vario, O2 Xda mini S and Pro, O2 XDA Exec, Orange SPVM5000, Orange Wizard, Orange C600, the Dell Axim X51v, HP iPAQ rx1955 Pocket PC, HP iPAQ hx2495 Pocket PC, and the HP hx2795 Pocket PC.

As a specific commitment with the community, Microsoft asks for your feedback I can/will pass on to the team. Please flag via comments function bellow any problems that the workarounds listed Microsoft's web site don't address, devices that Microsoft may have missed but where you face the problem described above or other problems relating to this issue that Microsoft may not be aware of.

Cheers ~ Arne

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Posted by user on 20.10.05 - 22:16:34

Gosh I can't stand this language where a problem becomes a "challenge". Pretty pathetic. Next time my car won't start I will call the garage to let them know that the car has a challenge.

Posted by HC Fra on 17.11.05 - 15:16:18

I experienced difficulties when suncronizing via USB even after having followed all steps in the MS troubleshouting guide for ActiveSync 4.0. The problem is that the phone seams to be available via only occationally - that is I can plugg in and it does not work. After having plugged in several times the connection is suddely working. Next plugg in might not work again.
Also the ActiveSync 4.0 does not seam to work with Bluetooth. I have established the connection by nothing appear from a sync point of view.
I am using Qtek 8310.

Posted by Aaron on 28.03.06 - 01:26:34

My Microsoft pocket 5.0 device will not sync my outlook.  Evidently the pocket 5.0 doesn't like the security certificate that it gets from our network.  I am told that we cannot disable the certificate checker.  Any workarounds for this?  Does Microsoft know and are they addressing?


Posted by Tom L on 12.05.06 - 02:03:07

I'm using a JasJar with Mobile 5.0 and sync on a wireless home network. The JasJar connects the first time when I load Activesync 4.1 (and Beta 4.2) and syns. The next time it doesn't work anymore and I get a network device error. I followed all MS advice regarding Firewall etc. but to no avail. Is there another way to fix the problem??? Thanks

Posted by Arne Hess on 12.05.06 - 14:59:09

What do you mean with wireless home network? How do you try to sync? Wireless (via - Bluetooth) or via USB?

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