Wifi access is available via the SLAC Visitor Network. While attempting to access the wifi network at SLAC, your browser should direct you to http://visitor.slac.stanford.edu if you need credentials. Enter your contact information and click "I Agree" at the bottom of the page to accept the terms of use. These credentials will last two weeks between logins.

 

More information on the SLAC visitor network is available at:
http://www2.slac.stanford.edu/comp/net/wireless/visitor_net.htm.