How to factory reset Linksys WRT54GC v3 router – Default Login & Password

The Linksys WRT54GC v3 router has 54mbps WiFi, 4 100mbps ETH-ports and 0 USB-ports.
It is also known as the Linksys Compact Wireless-G BroadBand Router.
How to factory reset Linksys WRT54GC v3 - Default Login & Password

Linksys WRT54GC v3 default Password , Login & Gateway settings :

If you have performed a reset of your WRT54GC v3 device or not changed the defaults, you
be able to access it with the following settings
Default password: admin
Default subnet mask:

How to factory reset (hard reset) Linksys WRT54GC v3 :

You can factory reset your Linksys WRT54GC v3 in the following way(s)
Through the web interface
Open your browser and navigate to the router interface (see 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.

Linksys WRT54GC v3 router specifications :

System specs
CPU: 240 MHz
RAM: 8 MiB
Flash: 2 MiB
Custom firmwares: OpenWrt
WiFi: 54mbps (bg)
WiFi bands
WiFi throughput: n/a
1 x 100mbps port
4 x 100mbps ports
USB-ports: 0