I did not catch what your source for internet was. DSL, CATV, satellite??? Reason I ask is, if it's DSL most phone lines are not shielded and that drop line from the utility pole to the house could be a big antenna with RF that overwhelms the DSL MODEM. What can be done? What I have had to do was wind ferrite chokes on the phone line that plugs into the DSL MODEM. DSL is a type of Carrier-Current transmission, where a medium wave carrier is coupled to the long-ass phones lines, and the DSL MODEM takes it from the phone line itself. Another example of that are those FM intercoms, that use the house wiring at around 175kHz. Anyway, several ferrite chokes will suppress the 43M band, but pass medium wave. BTW, I've also had to choke off the Eithernet cables and DSL wallwart where I am, since this MODEM that I have spurs on VHF badly. Another contemplation, (Not thought, since I don't want to strain myself.), is that newer CATV and satellite MODEM's use cheap switching power supplies, and no more step down power transformers, which worked great as RF suppressors. Depending upon what you have for a MODEM, you may have to choke the power cords as well.