WZR-HP-G300NH TFTP flashing and recovery guide for windows 7
Before flashing any firmware write down your routers MAC address!! looks like this 4C-E6-76-3F-2F-CA It should be written on the box mine is just a set of numbers like this 4CE6763F2FCA with no spaces
1.Download pumpKIN http://kin.klever.net/pumpkin save you wasting time with tftp and the command line
2.Unplug all the ethernet cable and the power cable and connect the computer directly to the router(still leave it off)
3.Go to Control Panel\Network and Internet\Network Connections in win7
right click on local area connection and choose "properties"
choose "internet protocol version 4"
click properties then click "use the following ip address"
Enter these values:
IP address 192.168.11.2, subnet mask 255.255.255.0, default gateway192.168.11.1
4.then turn off firewall go to Control Panel\Network and Internet\Network and Sharing Centre click on windows firewall then
choose "turn windows firewall on or off" then click on every "turn windows firewall off" box.
5.Open a Windows command prompt as Administrator. type cmd in the search box from Start menu, then press Ctrl+Shift+Enter. You will be prompted with the User Account Control dialogue choose yes. OR just right click on CMD and choose run as administrator.
Type the command
route print
to get a list of your NIC(s). Write down the interface number for the LAN card, in my case, it's 11, you may need to scroll up. mine is the first one "Realtek PCIe GBE Family Controller"
6.Now type the command below to get the ARP binding(thanks ermax at DD-WRT forum):
Replacing the number 11 with the interface number and 00-1d-12-34-56-78 with the router's MAC address.
netsh interface ipv4 add neighbors 11 192.168.11.1 4C-E6-76-3F-2F-CA
Eg: if your adaptor was no 10 and your mac address is 00:00:00:00:00 it would be
netsh interface ipv4 add neighbours 10 192.168.11.1 00-00-00-00-00-00
7.Run pumpKIN utility choose "Put File"
8.Put 192.168.11.1 as remote host, local File is the firmware file you want to flash openwrt or (usually Buffalo "friendly firmware" for a recovery).
9.Click "ok" and quickly plug the power cable into the back to turn on the router. (within a few seconds)
10.keep repeating point 9. until you see the file upload usually takes me three attempts.
11. leave router with power plugged in for at least 6 min for friendly firmware to install, it can take a while. the open ddwrt firmware only takes about 4 min.
When the upgrade is done.
12 repeat point 3 but choose obtain ip address automatically and ensure "obtain dns address automatically" is enabled in your adaptor so the router can be seen once the new firmware is active Navigate to http://192.168.11.1(for stock firmware) to configure your router. OR for openwrt http://192.168.1.1 see above post for basic config
13.Turn your firewall back on
(Last edited by bcmalloy on 23 Aug 2011, 06:52)