Hi, adding gateway to loraserver UI. On Gateways, I have added, but where it is asking for the gateway ID I thought it was the MAC it is looking for and I input the MAC (FC:C2:3D:0A:94:73), however I get the error ‘Please match the requested Format’. it is looking for 16 digits I now believe. I have tried HEX but did not work. Can anyone help me in what i should input here?