Unstable wifi


I have a MT300N that I started using as my main router, but the wifi signal is very unstable. It doesn’t totally disappear, but it just regularly drops for a couple seconds, which is really really annoying:


Anything I can do to debug/fix this?



PS: I bought it on Amazon, and did not really use it for a couple months, so I can’t return it. I’m comfortable dropping to SSH to look at logs and such if needed.

PS2: I also checked the USB power source, and tried a couple different adapter (most are Apple ones, so good quality). That did not change anything.