Installing wireless on Lexmark z11 printer is not very tough. I guess, the following steps can help you...
1. Simply place the printer near to your PC. This will help in getting strong signal. 2. 2. There are two options for installation, one automatic and one manual. Printers with LCD control panels usually let you configure the wireless connection directly from them. But manually, you have to set your IP address.
3. Adjust your firewall security setting.
4. Installation can also be done without CD. If the printer is on the correct network, then your operating system will find the drivers.
5. You also need to track down your SSID and password. You can also look up the network name and password in the wireless router's Web configuration pages. Open a browser and type in the IP address of your wireless router into the browser's address field.
Note that the router has a user name and password, as well. If you never changed your router's user name and password, check the documentation for the default settings.
Sometimes, you may also require to reset the router to its defaults. You can then redefine the network's SSID and password.