I forgot to mention my l3+'s came with a beaglebone controller again....not the controller bitmain made to replace the beaglebone on the newer gen s9's. this is cool mainly because it means if you have your own full fledged beaglebone controller with a working usb and controller for the tx and power (bitmain uses bare bones beablebone blacks with no usb and other components to save money on making them) we should be able to use a wifi dongle again! right now im using tp-link external wifi ap's that need 5v power (the internal controller is the same as the one used on old avalon miners) which is a pain because i need a long usb cable and a pwer brick for the tp link controller but if you use the beaglebone with usb and a compatible wifi dongle you should be able to connect up to wifi networks just fine. I havent ever flashed a beaglebone black or backed up the image so if anyone has the bitmain firmware image (not the upgrade package but the full firmware image) i can flash one of mine an see if wifi works on it and report back. i dont suggest using wifi unless you need to and for 2 of the miners i would need to run wifi so i dont have long ethernet cables running accross the room.