I am trying to use a USB modem 4G from D-Link model DWM-222 with the router TP-Link model TL-3020, but the TP-Link router does not have the file configuration specifically for that USB modem. Thus the router asks to upload the file configuration (we are not talking about the AP and the ISP configuration, but about the 4G modem).
Does anyone know which kind of file is this one? Extension?
Can I get it from the USB modem installation package?
Should I try to get it from TP-Link or from D-Link?
Does anyone have a file example of another modem so maybe I can use it as template?
Thanks in advance.