Connect a computer to Router B via Wi-Fi or with a network cable through one of its LAN ports to find out what the router's current IP is (repeat the first part of step 2 above to do this). Log Turn Your Old Router into a Range-Boosting Wi-Fi Repeater If you're upgrading to a faster, stronger wireless router, don't chuck your older Wi-Fi box. With the magic of DD-WRT, you can turn your older wireless router into a range-expanding Wi-Fi repeater Convert a HG658 Huawei Router to a Repeater - Instructables
How to Turn Your Old Router into a Repeater - Make Tech Easier
A WiFi repeater needs to be able to clearly pick up the wireless signal from your router. Thick walls, floors, and ceilings can disrupt the connection and weaken the signal. The further away the WiFi repeater is from the router, the weaker the signal will be. A WiFi repeater connects to a router and wireless devices on the same frequency.
Configuring an Access Point as a wireless repeater - Linksys
Nov 15, 2019 How to use Netgear AC1200 R6120 Router as Repeater without You want to put the router into "wireless repeater" mode. Only some routers allow this. The thing to look for in the manual is WDS. It is short for Wireless Distribution System. Unfortunately, the R6120 is one of the few in the whole R6XXX series that lacks that feature. In general, that router is "low spec".