A Simple Solution to Bad Wi-Fi: Use Wires | Wirecutter
Amazon.com: Sagemcom F@st 5260 / Fast 5260 Dual Band 802.11ac Wireless Router with 4 x Gigabit Ethernet Ports : Electronics
AC2600 Home Roaming Wi-Fi Router with 11ac Wave 2 MU-MIMO - EDIMAX
802.11ac vs 802.11n - What's the difference between the Wi-Fi standards? | Trusted Reviews
EDIMAX - Legacy Products - Wireless Adapters - 11AC WiFi USB Adapter for MacBook, Nano Size to Plug it & Forget it, Upgrade for Faster Performance, Support Mac OS 10.7~10.11 (5GHz Band Only)