Bluetooth SPP Problem with Witilt V3 (Buffer Overflow?)

Hello,

we bought 4 Witilt V3 some time ago, and we are now having some problems.

We connect to them using microsoft BT API (Winsock Extension). We do the search device process, then the service search process, and then we connect using sockets.

Everything works well but when the connection runs for some time, then the PC stops receiving data, and the bluetooth stack says the device is connected, and if we stop the application, the witilt remains connected (we have to replug the BT adapter to start working again).

If we connect to more than one witilt at the same time, when there is a problem, all of them stop sending data (or maybe is just the PC that stop receiving them).

Have you noticed this problem before? Did you get any solution?

Thanks.

Best Regards.