Summary: Doesn't work with Pantech. Their tech support says it's because it "doesn't support" 4G modems, but several other 4G modems are listed as being supported, including the 4G Pantech UML290. The unit's BIOS also has options for 4G modems. The manual mentions them as well.
Summary: I have tried several modems. They did not work with this device. Novatel Wireless U760, Huawei E1550, etc .. I have spent two nights trying to configure different firmwares and different modems. It does NOT work.
Summary: Doesn't work with Airtel 4G dongle even after firmware upgrade. The device shows internet connected but unable to access. The ping tool on device diagnostics times out as well. I wont suggest this one for Airtel 4G though it shows up in the device compatibility list on their site.
Summary: It just broadcasts wi-fi signal but not the internet connection. I bought this after verifying it supports my dongle but after connecting the donle and doing the quick setup for bsnl/docomo/airtel, it didn't work for any of that.
TP link products you need to read all the fine print... its not that direct
26 May 2014
Summary: TP Link product said its a 3g and 4g compatible, hence I ordered it. after getting it they have compatibility list and they don't have majority of the Indian product. Their support isnt that friendly. They will tell anything for you to keep your phone down. Its useless product...