Upgrading Linksys WRT54G Wireless Router Firmware is a quiet simple process. As long as you have the correct firmware, there won't be any complicated process.
Open your wireless admin page website. By default, the address is 192.168.1.1, username & password is admin. Go to Administration > Config Management > Backup > save the file to your computer.
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1. Backup!
Keep in mind, for any devices firmware upgrade, backup your configuration. It will save tons of time if something goes wrong.Open your wireless admin page website. By default, the address is 192.168.1.1, username & password is admin. Go to Administration > Config Management > Backup > save the file to your computer.