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!

Try to access via telnet (http://wiki.openwrt.org/doc/howto/first … ith.telnet) and instead of setting a password, just use mtd to write a new firmware (http://wiki.openwrt.org/doc/howto/gener … pgrade#mtd).

I just tried telnet, and resulted with an error "Connecting To... Could not open connection to the host, on port 23: Connect failed". I've tried to switch firewalls, but I don't recall any on my PC other than the one from Windows 7.

You could try to get into failsafe mode (http://wiki.openwrt.org/doc/howto/generic.failsafe) to access a telnet connection.
If that doesn't work, you need to connect to the serial port (http://wiki.openwrt.org/doc/hardware/port.serial) and flash from the bootloader (http://wiki.openwrt.org/toh/planex/mzk-w04nu).