Im sharing my wireless network with my neighbor from time to time, but im uncertain on how i should configure my router (tp link archer c2 with newest firmware update) to improve the signal. I have placed the router as close as i can so it's closest to his house (the signal at my place is all good, but at his place, the signal switches from 1-3 arrows rather frequently when we test 2.4ghz). his house is about 15-20m away from mine. my current setup is this: 2.4ghz > 11bgn mixed, channel 11, channel width auto, wds status disabled. 5ghz > 11a/n/ac mixed, auto channel (should i try manual channel, or?), channel width auto, wds disabled. either way, i have come to the conclusion that my neighbor needs a wifi extender, but which one should he go for? any recommendations? so far, this caught my attention: Ubiquiti Unifi AP - any words about it?