How do I reset the password on a linksys 200

Hold the reset key down with power on for 15 seconds.

In addition, there's an error in some copies of the user manual, the correct login is:

username: admin
password: admin
hope this helps if can help further let me know

All linksys routers have a RESET button. By pressing reset, the router will revert to the default setings. The reset button is typicaly located on the back of the router, you may need a paperclip or a pen to press the button. Press and hold for about ten seconds until the lights on the router blink. CAUTION! When the router is reset you will loose all currently configured settings. After you have reset the router you can log in to it using the default linksys username and password. Older routers have no user name and a password "admin" ( Do not use quotes in username or password). Newer Linksys routers use the default l/p admin and admin. Before you attempt any reset or changes to the configuration, you should go to the Linksys website, look for and download the user manual for your specific model. Linksys (now Cisco) has excelent web support.