Have been using three goCoax WF-803M MoCA devices for the last three years in this home and working perfectly fine. Out of a sudden the cable modem started acting weird, dropping internet periodically every 5 to 10 minutes. When I unplugged the master goCoax injector, everything went back to normal. Very strange this started to happen out of a sudden. I replaced the master injector witha. new one, same thing.

Coax -> 3-way Splitter -> Cable Modem

-> goCoaxk master <- ETH

-> rest of the home