Download the stock firmware image from the manufacturer's website, reset the router back to defaults using a 30-30-30 hard reset, then flash the stock image from within the dd-wrt webgui. After 5 minutes it should finish, you will then need to do another 30-30-30 reset …

DD-WRT Build Info Brainslayer added E2000 support in 14929, and builds are found in the broadcom_K26 folder for each build. Build 25974 works well but later k2.6 builds have VAP issues. How to install DD-WRT on Linksys E4200 Router - YouTube Feb 07, 2012 DD-WRT Forum :: View topic - E4200 builds. May 28, 2015

Aug 12, 2019

Optimizing DD-WRT on the Linksys E4200 v1 The Linksys E4200 router is an excellent choice for power-users looking to squeeze the most out of their network. It uses simultaneous dual-band 2.5 and 5 GHz antennas, which allows wireless clients to connect at speeds up … Amazon.com: Cisco-Linksys E4200 Dual-Band Wireless-N Product Description The Linksys E4200 offers maximum speed (up to 300 + 450 Mbps), optimal range, and simultaneous dual band technology to create an ultra powerful wireless network designed for home theater performance. Simultaneous dual band Wireless N technology allows for smoother and faster HD/3D video streaming. My Cisco Linksys E4200 DD-WRT Settings for Max Speed

My Cisco Linksys E4200 DD-WRT Settings for Max Speed

Jan 10, 2013 DD-WRT Forum :: View topic - Linksys E4200 v2 Jan 09, 2013 DD-WRT Forum :: View topic - linksys e4200