WRH54G
Wireless-G Home Router

Thumbnail for the Linksys WRH54G router with 54mbps WiFi, 4 100mbps ETH-ports and
0 USB-ports

The Linksys WRH54G router has 54mbps WiFi, 4 100mbps ETH-ports and 0 USB-ports.
It is also known as the Linksys Wireless-G Home Router.It also supports custom firmwares like: dd-wrt, OpenWrt

Quick links:
Default password/Login
User Manuals
Flashing Custom Firmwares

WRH54G router specifications (specs)

System specs
CPU: n/a
RAM: 8 MiB
Flash: 2 MiB
Custom firmwares: dd-wrt, OpenWrt

Connectivity
WiFi: 54mbps (bg)
WiFi bands: 2.4GHz
WiFi throughput: n/a
WAN: 1 x 100mbps port
ETH: 4 x 100mbps ports
USB-ports: 0

Hard reset instructions for Linksys WRH54G

If your WRH54G router is not working as it should, dropping connections or not being responsive, you should first do a reset of the router to see if the problems persist. Other scenarios where you might want to reset your router is if you've forgotten the password or misconfigured it and can't get access anymore.
Your can reset your Linksys WRH54G in the following way(s):

Through the web interface

Open your browser and navigate to the router interface (check default settings below)
Under the Administration tab you will find a sub-tab called Factory defaults
On the Factory defaults page click the button labeled Restore Factory Defaults

With the reset button

Have your unit powered on
Press and hold the reset button for at least 10 seconds until the power light starts blinking, then release.
When the power light goes solid, unplug the power to the router for 10 seconds
Plug the power back in and start the router
When the power light goes solid again the router is ready to use.

The 30-30-30 reset

If the above instructions don't work you can always try the 30-30-30 reset as follows:

When router is powered on, press the reset button and hold for 30 seconds. (Use a paper clip or something sharp)
While holding the reset button pressed, unplug the power of the router and hold the reset button for 30 seconds
While still holding the reset button down, turn on the power to the unit again and hold for another 30 seconds.

This process usually works for resetting any router to it's factory setting.

Note: It is worth reading more about how to reset routers with the 30 30 30 reset and what the risks and considerations are when resetting your router this way, instead of just rebooting it.

Default factory settings for Linksys WRH54G

If you have performed a reset of your WRH54G device or not changed the defaults, you should be able to access it with the following settings:

Default subnet mask: 255.255.255.0

Note: If you are using the default settings you should change them to increase security and prevent unathorized access to your network.

WRH54G Firmwares

Staying up to date with the latest firmware is a good idea to keep your router even more secure from various security flaws.
If you want to squeeze a little bit of extra functionality out of your router, consider flashing an open-source firmware like dd-wrt, openWRT or LEDE. Flashing a custom ROM can greatly increase the stability and functionality of your old router.
Following are the firmwares that we have identified existing for the Linksys WRH54G:

Flashing dd-wrt on the Linksys WRH54G

Since the WRH54G has 2 MiB of flash memory, you should choose a stripped down version of dd-wrt that fits on the smaller flash. We haven't find any specific instructions for flashin dd-wrt onto the Linksys WRH54G, but you can read the Installation guide over at dd-wrt to get a clue on how to proceed (As this model is listed as supported).
Note: Always make sure to read the wiki and howtos of dd-wrt before doing any flashing.

Flashing OpenWrt on the Linksys WRH54G

The Linksys WRH54G is supported by OpenWrt according to their Table of Hardware. So flashing OpenWrt onto it should be quite straigthforward.
We couldn't find any specific instructions for flashin OpenWrt on the Linksys WRH54G, but since it's listed in their Table of Hardware as supported, you can head over to the OpenWrt install instructions and read on there.
Note: Flashing custom firmwares is always on you're on own risk. Make sure to read OpenWrt's wikis to understand the risks and how to proceed if something goes wrong.

Linksys stock firmware for the WRH54G

Stock firmwares for the WRH54G are available under the download section on the modem's support page. You can also refer to the router's manual for instructions on how to upgrade the firmware.