Timeout issue

Hi, thanks for your greatjob! I haven't my laptop with me but I will try to add screenshot/data asap.

I have an issue "time out" when I try to send data (with transfer) to device. If I try to set the timeout to 15000ms the issue is still here (and timeout appears about 1,5 sec after the start of the transfer.
Is it possible to have more tips or clues un order to solve that.

Thanks !
