Microsft ActiveSync 4.5 does not work with Dell Latitude D620

Question

Hi,

I install Microsoft ActiveSync 4.5 on my Dell Latitude D620 (Windows XP SP2) and when I was trying to synchronize with my Exchange server, I encountered the following error:-

The server could not be reached. This can be caused by temporary network conditions.
Support Code: 80072efd

I encountered the same problem with Microsoft ActiveSync 4.2. I don't have any problems when using another notebook with Windows XP SP2.

Appreciate if anyone can provide help.

Thanks,

Roy

dunedin · Answer

Roy

I found this fix which worked for people on another forum who had this problem. It is your choice whether to try it or not

ActiveSync version 4.2 made a change to how it interacts with the Windows networking stack to use Layered Service Providers (LSPs) on outgoing Desktop-Pass-Through connections. This allows for improved compatibility & policy compliance in environments where connections to the internet must be passed through these LSPs (ISA Proxy is one such example).

Unfortunately, it appears this change has caused some issues for a small segment of users who have LSPs that interfere with ActiveSync communication.

There is a registry key which can be created to essentially remove this change & revert to ActiveSync 4.1 behaviour. This key is:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows CE Services]
"AllowLSP"=dword:0

In the NAME column
AllowLSP

Roy Tan · Answer

Hey, it works! Thanks lots!

dunedin · Answer

Happy to have helped you Roy :smileyhappy:

Windows General

Microsft ActiveSync 4.5 does not work with Dell Latitude D620

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