I'm testing a Microchip LoRa Gateway. I acquired a LoRa Dev Kit DV-164140-2, it is very complete.
I only got an issue regarding the gateway config update (through microSD). I had to upgrade the gateway firmware through .hex (JTAG/Mplab IPE).
After this issue, I could connect it to TTN and now I'm testing it with my motes :-)
Vinicius de Sá