Comcast/Xfinity

The issue you may have is that some ISPs will only allow certain modems. Before Spectrum took them over, Time Warner Cable used to be fine with the customer supplying pretty much any DOCSIS 3.x modem. Once the purchase of TWC had gone through by Charter Communications, the newly formed Spectrum started to change their mind and only allow very specific modems - and, later on, even started saying that you could not bring your own modem and you had to take one of theirs - for free for now, but it wouldn't shock me any if they later on up and started charging rental for them.

That's one of the many reasons I left Spectrum.

kltaylor said:

For WiFi, I can't help but promote whole-home service through a mesh network.  Your preferred brand may vary, but I've installed a handful for both business and consumer use, and I've only had one issue where I had to return to re-connect them to one another, as there was an issue with the firmware that was currently installed on the device.

My wife currently works from home and was getting horrible issues with her VPN etc. When they saw she was connected wirelessly they started pointing fingers at my Mesh environment. Given that I had three Eero Pros, I ended up plugging her computer into the third Eero that was then wirelessly backhauled to the second Eero. The problems remained until they swapped out her PC (yeah, had nowt to do with the Eero's - go figure) but it wasn't until they saw a hardwired connection that they'd even contemplate anything else.

I hate ignorant IT departments.