This guide has been substatially updated and moved here:
This page is about my experiences with an Netgear WNR2000 V3 router. I spent some hours with the router learning how to make it "better than new" by modifying some recent third-party firmware and installing it on the router.
The Netgear WNR2000 V3 is a capable little consumer 802.11n router that has "potential".
- The Atheros CPU runs plenty fast at 360MHz
- There's plenty of RAM: 32 megs
The main limitation of this router is the flash space provided. Available space for firmware is very small because Netgear partitions the 4 megs of ROM space in an unusual manner.
The unusually small amount of ROM space severely limits your third-party firmware choices on the WNR2000V3. You can, however, install a recent DD-WRT version that "fits" within the available space. It's not a simple process, but once it's done the end result is a capable little router.
Installing DD-WRT Firmware
There's a recent firmware that's supposed to be for this router, but it's slightly too big to fit into available flash space. The firmware's size can be reduced using a Firmware Modification Kit. Here are some rough notes:
- Untar the fmk.
- Copy the firmware into the ./fmk/ directory.
- Unpack the firmware.
- Unpack the web files.
- Delete all of the contents from some language files, thus shrinking their size to zero bytes.
- Repack the web files.
- Repack the firmware.
Flashing over to DD-WRT is covered on the web. Here are some rough notes:
- Downgrade the Netgear firmware if necessary.
- Factory reset.
- Flash dd-wrt "factory" firmware.
- Clear browser.
- Factory reset.
- Flash modified (shrunk-to-fit) "webflash" firmware.
Hardware Factory Reset
- Make sure nothing's plugged into the yellow WAN port.
- Press the reset button until the blue wireless indicator on the front panel turns off.
- Wait until the blue wireless indicator lights up again.
DD-WRT build 24461 on a WNR2000V3
The starting point is a freshly-reset router. The router I used is running brainslayer's DD-WRT v24 SP2, modified to fit onto the WNR2000V3' limited space by shrinking some foreign language .js files down to zero bytes.
Set Administrator username and password
Freshly-reset DD-WRT will prompt you to set the Administrator username password. Use a username like "wnr2kadmin" or something else that's not "root" or "admin".
Temporarily disable wireless.
Wireless - Basic Settings Wireless Network Mode: Disabled
Setup - Basic Setup WAN Setup - Optional Settings Router Name: [same as SSID] Network Setup DHCP Static DNS: 220.127.116.11 18.104.22.168 (OpenDNS) Time Settings Time Zone: America/Phoenix [or your time zone] Server IP/Name: north-america.pool.ntp.org <Apply Settings>
Configure MAC addresses
MAC Address Clone Enable Leave the OUIs (first three hex-pairs) alone and re-configure the address part.
If you don't know what this means, no worries. The factory-provided MAC address will work fine.
Configure wireless security.
Wireless - Wireless Security Security Mode WPA2 Personal WPA Algorithms: AES WPA Shared Key: Passphrase with more than twenty characters. <Apply Settings>
Configure and re-enable wireless
Wireless - Basic Settings Wireless Network Mode: NG-Mixed (*) Wireless Network Name (SSID): wireless (**) <Apply Settings>
Now your wireless is secured and re-enabled.
(*) NG-Mixed is optimal because it turns off 802.11b, which is recommended. If you have an old 802.11b devices use Mixed or, better yet, de-commission the old device.
(**) If you use a generic SSID ("wireless", "NETGEAR", "default", etc.) it will give you some privacy advantages. If you don't mind identifying yourself by broadcasting your unique ID from your wireless devices (phone, laptop, tablet) then use any unique SSID. Perhaps use netgear-nnnn where "nnnn" is the last four characters of your router's serial number.
For rock-solid reliability, set your router to reboot itself once a week.
Administration - Keep Alive - Schedule Reboot Check Enable Set the day and time (e.g. 3:45 Sunday) <Apply Settings>
That's it. Now you have a capable and dependable little router that will provide secure and reliable Wi-Fi service.