Hi. I have a Lexmark Wifi printer that is set up in my room to work with my MacBook Pro and iMac. Until yesterday, I had a Linksys router that wasn't broadcasting a secured network. Now I have an Airport Extreme Base Station that is broadcasting a secure network. I'm having issues trying to get my Lexmark printer to pair up with a password protected wifi network. The wifi indicator on the printer is green, but I'm unable to print. I'm really going to need to get the printer up and going for school, so I appreciate you helping. I can attempt to set up the wifi printer by doing the "push button" method by pressing the WPS button on the router (does and Airport Extreme even have a WPS button? I know it has a button on the back, but is it the WPS button?) Still after doing that, it doesn't connect. When I try to reinstall the printer by using the installation CD is says my version of Mac OS X isn't compatible. Please chime in if you can help me. When My printer was working perfectly with Mac OS X Lion before I switched to a Base Station, but now it's saying that my printer software isn't compatible with this version of Mac OS X. I've even downloaded drivers from Lexmark's website.