Specifically, it's the TP-Link Deco BE68 (or BE67, if you buy it at Amazon) and continuing with the theme of specificity, ...
The most important networking command in Linux might be ping. This command lets you check if a remote machine is responding ...
One type of electronic device to especially avoid is the microwave, which emits a strong signal in the 2.4GHz band, the same wireless band your router operates in. Be careful not to stick your router ...