I downloaded Shibby for the E3000, but I'm having problems. If both 2.4 ghz and 5 ghz networks are ON and broadcasting if I try downloading anything big the wifi shutsoff, the router doesn't but it stops broadcasting the wifi and then takes a bit to start it back up. If I shutoff the 5ghz band it won't crash. I know this sin't a problem with the router, because stock firmware doesn't cause this problem.
Problems with Shibby and E3000 Dual Band