https://devzone.nordicsemi.com/f/nordic-q-a/11560/nrf51-dongle-lost-connectionSometimes windows lose the connection to the nRF51 Dongle. The only way I have been able to reconnect to the dongle is by unplugging and replugging it to the USB port. I have tried several dongles and computers. But this seems to be a general issue. Theen-USTelligent Community 13Tue, 14 Nov 2017 10:43:53 GMT