I used the stock fw all along until I recently decided to flash to OpenWRT fw. I first flashed to "ar71xx-squashfs-factory.bin" and it was successful, but then I got greedy and tried installing "ar71xx-squashfs-sysupgrade.bin". This is when things got ugly; now that when I try accessing the router's web interface it just returns "NO SUCH FILE OR DIRECTORY". The router works perfectly fine, but I have no way of setting up the wlan and other settings. I've read dozens of posts regarding how to flash theirs to squashfs-factory, but the posts were scattered and incomplete. Could anyone please give me a simple tutorial as to how I can fix it?
I'm using Windows 7; and I tried the installing via opening two cmd's: one pinging the router, and the other one executing the "tftp -i 192.168.1.1 PUT openwrt-ar71xx-squashfs-factory.bin". The problem is I never got the "HARDWARE ERROR" return, and instead I always had the "GENERAL FAILURE".
I'm pretty noob to this, so please make things more explicit, thanks!