NPL offers free wireless internet access at all locations. You do not need a library card to use Wi-Fi. How do I connect? Open Network Settings on your device. Look for Metro Public Wifi in the network list. You must agree to the Internet Safety Policy. NPL's Wi-Fi is not a secure network. Data being sent and recieved by your device could be accessed by a third party. For information on how to keep your information secure over public Wi-Fi networks, take a look at Tips for Using Public Wi-Fi Networks, from the Federal Trade Commission (FTC).