Couple of pointS: DHCP Really? Really? Please explain how, once you have a (good) lease, there is some impact? (DISCLAIMER: I use either fixed IPs or reserve addresses based on MACs, but that's a personal preference of mine for various reasons -- NONE of which have anything to do with somehow communication getting messed up magically.) WiFi Needs to be mentioned a few thing: 1) You (most likely for all the following statements) have a cell phone (or four if a family). You have tablets. You have an AppleTV/Roku/fire/whatever. You have a smart TV. You have Hue light bulbs. You have a security cam/front door cam/baby cam. You have a smart fridge. You have IoT toys. Etc. etc. People have a lot more devices on their LAN than they think. That's all potential competition. 2) WiFi is in *UNLICENSED" spectrum. There is a lot of pollution in unlicensed spectrum. Few sub-points here: a) non-wifi communication. (Cordless phones aren't really a thing anymore, and most baby monitors are wifi now, but still potentially legacy device that are easy to forget about.) b) non-communication pollution (devices that produce noise unintentionally in the spectrum) c) Neighbors. You most likely have them. And they have all the devices that you do, if not more. If you live in suburbs, bad enough. If you live in, say an apartment building in San Fransisco, good luck getting a good signal more than 3 feet from your AP. [spoiler]Yeah, wireless has gotten much better at addressing these issues. But still not 100%. Plus *shudder*, some people still running 802.11b hardware...[/spoiler]