If you want to reset admin password in linksys router then follow this article-How to Reset Admin Password in a Linksys Router.
Step1: Shut down all devices where you connect the Linksys WAG200G.
Step2: The WAG200G has a built-in DSL modem so, extra DSL modem is not necessary.
Step3: First, connect the yellow Ethernet cable included with the WAG200G to your computer's Ethernet port and connect the other end of the cable to one of the four ports on the back of the router/modem.
Step4: And then connect your DSL cable to the DSL port in the back of the WAG200G and connect the other end to the DSL wall jack.
Step5: Connect the AC adapter to the back of the WAG200G and plug it into the wall.
Step6: After completing the all above steps, turn on your computer.
Step7: Insert the setup CD packaged with the WAG200G router/modem into your computer's disc drive and follow the on-screen instructions to configure the device for first use.
Linksys WRT54G broadband router is one of the most popular consumer routers ,if you want to configure linksys WRT54G router then follow my blog-How to configure linksys WRT54G .
To get linksys tech support then you can reach online technical support service desk of V tech-squad at their Toll Free No +1-877-452-9201.