Problem with DIGI REAL PORT ME using Socket Profile


I’ve a problem using DIGI REAL PORT ME with Socket Profile. I try connect to the device using Windows Socket (I use Borland C++). After some correct connections, device doesn’t function.
Other port function (WEB, ,). Ping command from pc function.

The only way the use already Socket port is to turn off and turn on the device, or reboot.

Any Idea?
Thank you for help