There is a three or four year old thread that deals with this (kind of), but it didn't help me and hasn't had any posts in the last few months. I thought it better to start a new thread than resurrect an old; I hope that's acceptable. So, I have had this printer for years, but the Air is one I got (refurbished) a few months ago. I've been trying to get it to connect to my Lexmark x4650 for those months, off and on. I tried the straightforward method of installing the wireless setup software to my Mac, connecting the printer to the network through the Macbook Air, and searching for the printer over the network with my Mac, but, while the printer connects to the network fine, the Mac doesn't see it over the network. I tried connecting through the IP address, but even that didn't work. It first said it couldn't identify the printer, then when I ignored that and connected anyway it said there was a new printer connected through the IP but wouldn't print or anything. I also installed the updated software and drivers from both Apple and Lexmark. After all of that and trying for a 50th time to re-setup the wireless connection, I went to the printer settings on my Mac and searched for the printer to add. At the time I still had it connected through the USB, and that connected fine, but when I went to add another printer to the queue, while the USB connection was visible in the list, the wireless wasn't. Then, like some sneaky French ghost, the Bonjour connection popped into existence, but when I moved the cursor up to click on it, it disappeared. It did that twice. I feel like I'm living in a cartoon now. I feel there must be something obvious I'm missing, but I haven't been able to guess what that is yet. Maybe somebody here can help?