It is my old old Buffalo WZR-HP-G300NH Router. I used it for many years. Later last week I tried to upgrade the firmware to the newer one. But unfortunately, it is bricked.
When I powered it up, after a while, the lights are solid Diag and Endless Reboot.
I have experience with it. I used to un-brick a WZR-HP-G300NH2. It is two years ago.
Now I tried the same way and it does not work.
It took me about three hours and nothing worked in the midnight. So I decided to go to bed. Then next day, it means today afternoon, I started to google and try to find other users’ un-brick experience. I found this post from the Wichita Computer Guy I am not using his method. I use the method in the comment submitted by Xetal.
For me and anyone else, I recorded it here as a backup or record for reference.
Windows XP on an Aspire One Netbook.
The Firmware will be flashed to the router: wzrhpg300nh-176.bin . It can be downloaded from the Buffalo official site.
- Connected computer to router’s LAN port nearest to the wan port;
- Manually change the computer network IPv4 setting, to IP address 192.168.11.2, Mask 255.255.255.0, Gateway 192.168.11.1;
- Wrote a bat file that assigns an arp entry and starts tftp transfer
- Fired the bat file around 12 seconds after powering the router, I counted seconds manually;
- After successful tftp transfer, Diag light got from solid to blinking, waited until the router reboot (about 5 minutes), and no more Diag light and router web interface can be accessed via 192.168.11.1 from my computer. (username admin, password password)
Bat file content:
arp -s 192.168.11.1 02-AA-BB-CC-DD-1A arp -a tftp -i 192.168.11.1 put wzrhpg300nh-177.enc pause
It works and it helped me.
Later I upgraded the firmware to the latest one I downloaded from DD-WRT.
Now the router is running on the firmware DD-WRT v3.0 r43516 std (06/25/20).