I have my modem (SBG7400AC2) hooked up with an ethernet line/cord right beside my main computer. Works fine.
I wanted to run a 2nd ethernet line to another room (approx. 75 feet away) to a wireless router extender to boost strength. When I try it, my main modem router shuts off when I hook up the Wireless router extender. Any help or advice? My modem has 4 ethernet out puts. Do I have to reconfigure something in the wireless router extender to make this work? TIA