After spent days and hours, bricked two units of TP-LINK WA-730RE V2, I was successfully flashed gargoyle on my third unit of 730RE V2 . I want to share the story:
Headache with unstable wifi using original firmware, I search on google about how to make its wifi stable. I never know about third party firmware. This is new for me. So, after read here
http://www.dd-wrt.co.id/phpBB2/viewtopi ... b8ef036e2d, I flashed my first 730RE V2, success, but LAN Port only work for configuring ddwrt web page, can not work for bridging Wireless and LAN Connection. So, I upgrade with latest version of ddwrt, it bricked, must be I flashed with the wrong version. But never mind.
Move to openwrt forum, inspired by this page
https://forum.openwrt.org/viewtopic.php?id=42236, I flashed my second unit with STABLE openwrt firmware for TP-LINK WA-741ND V4, success and work great. But, I prefer to have GUI, so I installed luci. After playing around with luci, I interested with gargoyle, so I flashed back to original firmware with mtd method, bricked, I was do something wrong for sure. Once again, never mind.
Think hard, if firmware openwrt for 741ND V4 works for my second 730RE V2, and read in the forum that gargoyle based on openwrt, I brave myself to flashed my third unit with gargoyle 1.6.1 for 741ND V4, then abracadabra, success, it work great. Now I have a great router/client/repeater.
Other thing, I also success flashed my old LINKSYS WRT54GL with gargoyle 1.4.7. This old router works great with gargoyle, I almost throw it because of its age, I decide to keep it longer.
Now, I have challenge to flash my other two units of TP-LINK, model WA-701ND V2. If somebody have success flashed 701ND V2 with gargoyle, please inform. Read in some forum, no luck. I think I will do like 730RE V2, possibly bricked one or two of them. Will share the story if success.