If you want to reset linksys password then follow this blog-How to reset a LinkSys Router password.
Step1: Open any Web browser on your computer, and type "18.104.22.168" into your browser's address field.
Step2: Log in to the router at the prompt by entering "admin" in both the username and password fields that appear, and then click "OK" to enter the router main menu.
Step3: Click on "Automatic Configuration - DHCP" at the "Internet Connection type" field box.
Step4: Enter the username and password your ISP assigned to you in the respective fields below the "Internet Connection Type" box.
Step5: Click "Save Changes" to save the router settings. The router connects to the Internet automatically.
Note: For any tech support on linksys router ,you can reach online technical support service desk of V tech-squad at their Toll Free No +1-877-452-9201.
See also: How to Disable DHCP on a Linksys Router..