Buy the Linksys RE6300 AC750 WiFi Extender | Linksys: US
Amazon.com: DD-WRT Mega - Linksys WRT54G-RG with Heatsink Router Repeater Bridge USB VPN Ready WiFi WAN Wireless N Access Point AP [DD-WRT PREINSTALLED] : Electronics
Linksys Official Support - Setting up the Linksys RE7000 to Range Extender mode
Amazon.com: Linksys RE9000: AC3000 Tri-Band Wi-Fi Extender, Wireless Range Booster for Home, 4 Gigabit Ethernet Ports, Works with Any Wi-Fi Router (Black) : Everything Else
Turn an old router into a repeater - Make:
Linksys Official Support - Setting up the Linksys RE6500 and RE6500HG to Range Extender mode
Amazon.com: Linksys RE6500: AC1200, Dual-Band Wi-Fi Extender, Internet Booster, 4 Gigabit Ethernet Ports, Uninterrupted Streaming and Gaming (Black) : Electronics
Access Point Mode on Linksys Wifi router | NETVN - YouTube
Add Linksys to network as an Access point | NETVN - YouTube
Install DD-WRT on Linksys WRT54GL v1.1 & Repeater Setup | وإعداده كـ ربيتر WRT54GL على DD-WRT تثبيت - YouTube
Linksys Official Support - How to extend your router's range with a range extender