Linksys WRT54G router is capable of working in repeater mode with third party firmware like DD-WRT. A WiFi repeater is a device that will connect to another wireless access point and redistribute the signal.

DD-WRT Forum :: View topic - WRT54G Repeater May 07, 2014 repeater mode , wrt54GL ,dd wrt firmware - Wireless Aug 12, 2013 How To Extend Your Wireless Network with Tomato-Powered Jan 24, 2012 Linksys Cisco WRT54G wireless WIFI repeater range extender

The WRT54GL: A 54Mbps router from 2005 still makes

How to Extend Your Wi-Fi Range with Another Router

Turn Your Old Router into a Range-Boosting Wi-Fi Repeater

Is it possible to use it as a Repeater Bridge when the host router isn't configured to be in the default 192.168.1.1 subnet?" Should be fine as long as the secondary AP has an IP address within the primary's subnet. When connected, is the WRT54 able to ping the primary AP? What was the gateway address for the clients connected to the secondary AP? Wlan Repeater - DD-WRT Wiki Also take note of the fact that all repeaters, including this Wlan Repeater mode, will sacrifice half of the bandwidth available from the primary router for clients wirelessly connected to the repeater. This is a result of the repeater taking turns talking to not just one partner, but to … How to Extend Your Wi-Fi Range with Another Router