My mBot used to connect fine with the 2.4GHz dongle, with no other mBots around. Now all of a sudden it won’t connect. I have Makeblock 3.1. I re-installed the firmware using the USB cable, it did not help. Also, now the remote control won’t work either. I will be teaching a class with 6-8 mBots at the same time and need to know how to fix this. Why won’t it connect any more? What can I do about it?
