I have also bought another TP 3g modem. I really don't like them much being very less powerful wifi.Coming to your query, I assume this should work by giving input through RJ45 cable coming out from beam modem for desktop lan. Let the modem setup for auto identify. Since you have the beam commenction, you can do hit and try...I love this doing research and educate us here.How about the beam? Must be amazing.