Choose a wireless network validating identity
5) Wait until the modem comes online (usually the Cable, Cable Link or Online light has to turn solid). If using a wired connection between the computer and the router, check the cable is plugged in correctly.
If using a Mac, put it to sleep, wait 20 seconds, then bring it out of sleep and retry.
See: Apple support #106864 -- Air Port Extreme: Getting an equivalent network password Apple support #58574 -- Air Port for Mac OS 9: Third-Party Wireless Software and Equivalent Network Password Top 1) Turn off the modem 2) Turn off the router 3) Check that the WAN or Internet port of the router is properly connected to the modem.
General information about wireless: "The wireless network appears to have been compromised and will be disabled for about a minute." This message can appear with OSX 10.4 or 10.5 if the SSID of the wireless access point has recently been changed.
If using a Windows PC, first try to Repair the connection or use Diagnose in Internet Explorer Version 7.
If using a Windows PC, and Internet Explorer says that it is working offline, click File then uncheck Work Offline (press Alt once to make the Menu Bar appear in IE7).
Examples are Linksys WCG200-CC, Netgear CG814WG, RCA DCW725.
Information about default settings is publicly available by web search.