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Can not connect after resuming PC from sleep

February 19, 2020 Article #11518

The Microsoft ActiveSync drivers on the rugged handheld computer can become locked up when trying to connect to the Windows Mobile Device Center (WMDC, formerly ActiveSync) program on a desktop PC that has been recently resumed from a Sleep state. This can cause WMDC to not connect, or generate a red capitalized ERROR message. The handheld must be soft Reset (hold Power button for 5 seconds) or maybe even the desktop PC must be rebooted before a connection will succeed.

 

 

 

 

 

 

 

This issue could be avoided by fully shutting down the desktop PC rather than using Sleep, or logging out before using Sleep. Otherwise, a workaround is to disable the "USB selective suspend setting" under Start (> Settings) > Control Panel (> System and Security) > Power Options. Under the active power plan click on "Change plan settings" > "Change advanced power settings", and then click on the plus sign box next to "USB settings".