Im trying to connect using Coax cables, and have added the ScreamBeam Moca connector. Its not the splitter? Im using the POE filter on the port on the splitter. I have tried to change the DNS address but not sure if there is anything i can do on the settings. It could be the coax cable is too long or too old. Worse case sceario, im getting a pretty good wifi connection from the main router. But im wondering if there is anything i can do to my deco in the app to help .