I have an Asus RTN66U "Dark Knight" and it works wonderfully in about half of my ~1500 sq. ft. apartment, but shitty in the other half. I'm convinced a single r

I have an Asus RTN66U "Dark Knight" and it works wonderfully in about half of my ~1500 sq. ft. apartment, but shitty in the other half. I'm convinced a single router won't be enough.