Wired ? which means AC88U is wired to AC5300 or do U mean that its performance is near "wired" performance ?ASUS RT-AC5300 + ASUS RT-AC88U Combo
900+Mbps up and down wired performance @ link rate 1733Mbps
No luck in @ theoretical max, guess it's possible to achieve 2133Mbps @ lab environment
What is the distance the 2 routers ?
Any walls in between ?