You get an error, Unable to Join Network Failure (error -3) when you try to join a Wi-Fi network.

1. Ensure that the Security setting for your iPod Touch matches the setting on the wireless router. (WEP password, WEP hex or ASCII, WPA, or WPA2)

2. The wireless router may not always broadcast the SSID. In this case, you must learn what the SSID is, and enter it manually under Settings > Wi-Fi > Other . By default, many Linksys routers have a SSID of linksys. Also select your Security setting and enter your password.

3. Other security settings on the router can lock you out such as MAC address filtering. Research whether there are other types of restrictions on the wireless router.