1 Reply Latest reply: Mar 7, 2013 11:21 AM by Linc Davis
Thegrimone Level 1 Level 1 (0 points)

Hi guys. I've been having endless problems trying to print wirelessly at home with my Lexmark prevail Pro 707. I use  a billion wifi adsl router. The Internet connection on my MacBook Pro also seems to drop intermittently and requires my to login again. However the connectivity problem only seems to apply to my MacBook. My iPhones and iPad are fine. Would my problems be solved if I buy and airport? Is there any point in having an airport and wifi router?


MacBook Pro with Retina display, OS X Mountain Lion (10.8.2)
  • Linc Davis Level 10 Level 10 (169,340 points)

    Back up all data before you do anything else.

      
    Step 1
      
    If you haven't already done so, reboot the router and try again.
      
    Step 2
       
    Check the router's settings to make sure that it's configured as a DHCP server, and also make sure that you have one and only one such server on the network. For example, if your broadband device and your wireless access point are separate, one of them should be set up in bridge mode. If other wireless clients on the same network are working normally, you can probably skip this step.
      
    Step 3
      
    Try this step only if you have a third-party router (not an Apple AirPort or Time Capsule.) Click the Advanced button in the Network preference pane, then the TCP/IP tab. Type something (anything, as long as it's unique) in the DHCP Client ID text box. Click OK, then Apply. Reopen the TCP/IP tab and click Renew DHCP lease. If there's no change, go to the next step.
     
    Step 4
     
    Make a note of all your settings for Wi-Fi in the Network preference pane, then delete the connection from the connection list.
    Launch the Keychain Access application in any of the following ways:

    ☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)

    ☞ In the Finder, select Go Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.

    ☞ Open LaunchPad. Click Utilities, then Keychain Access in the page that opens.

      
    In the keychain list, an item named "System" should be listed. If it isn't, select File Add Keychain from the menu bar and add the following:
     
    /Library/Keychains/System.keychain
      
    Now search in Keychain Access for the name of the wireless network (not the name of the router.) Double-click one of the items and check the box labeled Show password in the inspector window. You'll be prompted for your keychain password to confirm. Make a note of the network password. Then delete every "AirPort Network Password" in the search results. Quit Keychain Access.
     
    Go back to the Network preference pane and recreate the Wi-Fi connection with the same settings as before. You do this by clicking the plus-sign icon below the connection list, and selecting Wi-Fi as the interface in the sheet that opens. Select Join other network from the Network Name menu, then select your network. Enter the password when prompted and save it in the keychain.
      
    Go back into the TCP/IP tab to see whether you now have a valid IP address (one not beginning with 169.254.) If you don't, try again to renew the DHCP lease.