I created and now use a wifi network without a password. I'd like to password protect the network, but have no idea how to add a password. I can't find any information anywhere about adding a password after the network is created. Help!
It doesn't matter which computer you do this on within your network, as you have to set the password through your router settings. This will vary depending on what make your router is.
If you have a Netgear router like me, they have a great support site which contains a simple guide to follow.