The connection with the robot can be affected by a number of factors. The solution depends on the nature of the problem and whether the problem happened just now or you are not able to connect on day one. If everything worked properly before, double check that no settings on your tablet or smartphone have been changed. Try restarting your Bluetooth. If you are not able to connect to the robot from the beginning, make sure you are not pairing your devices through your devices Bluetooth panel. If that is the case, unpair the devices, open the Photon’s app and connect to the robot directly from the application. You can also try to troubleshoot any connection problems by restarting your device.