Hi @kingbr
So my digital front end evolved in many ways over about 7 years. I think it all matters and I heard incremental upgrades all along the way. Today I have a Verizon Modem, as I agree with some who have said don't fight this issue with the provider. But, a good LPS on it makes a difference. I then have a nice switch, again with a nice LPS and then feed my audio. My wifi Router is separate, an Eero three unit mesh system that works great. My main systems are wired for audio, but I do run Sonos speakers upstairs off the wifi.