Wifi Problem

Discussion in 'MacBook Pro' started by FireBender, Dec 30, 2010.

  1. FireBender macrumors newbie

    Joined:
    Jul 27, 2010
    #1
    After coming back from a two day vacation I turned on my MBP to realize the date abd is incorrect. I connected to the internet and a pop up came up asking to accept or deny, i hastily clicked deny. I think that is the reason why I now cannot use the wifi connection. My airport is on and it shows full bars however I cannot access any websites. My only option for internet is to use an ethernet cable.
    I searched and searched but I have not found a solution yet.
    I went through system preferences, reset the router, all of which did not work.
    Any tips? Thanks in advance!
     
  2. nunes013 macrumors 65816

    nunes013

    Joined:
    May 24, 2010
    Location:
    Connecticut
    #2
    you dont have any proxies turned on like a socks proxy right
     
  3. Dalton63841 macrumors 65816

    Dalton63841

    Joined:
    Nov 27, 2010
    Location:
    SEMO, USA
    #3
    Have you checked the advanced settings of Firewall in the Security prefpane for anything that shouldn't be blocked?


    Also another thing you might try is this:
    open network prefs, highlight Airport on the lefthand side and click the minus sign to delete it. Then apply. Then hit the plus sign and re-add Airport and set it back up.
     
  4. nunes013 macrumors 65816

    nunes013

    Joined:
    May 24, 2010
    Location:
    Connecticut
    #4
    this^^, also i just thought of this did you try a different browser. if it works with other browsers reset the one you want to use
     
  5. FireBender thread starter macrumors newbie

    Joined:
    Jul 27, 2010
    #5
    Thanks but none of these solutions worked. :/
    any others? In the preferences my ethernet is green and my wifi is red.
     
  6. munkery macrumors 68020

    munkery

    Joined:
    Dec 18, 2006
    #6
    Try turning off the application firewall, deleting com.apple.alf.plist (in /Library/Preferences/), and restarting the machine.

    You will have to reconfigure your firewall settings but I find this solves issues with default services prompting for firewall exceptions and network issues.
     
  7. FireBender thread starter macrumors newbie

    Joined:
    Jul 27, 2010
    #7
    I cannot find com.apple.alf.plist in the library. Is that spelt correctly?
     
  8. munkery, Dec 31, 2010
    Last edited: Dec 31, 2010

    munkery macrumors 68020

    munkery

    Joined:
    Dec 18, 2006
    #8
    You actually have to delete two plist files.

    /Library/Preferences/com.apple.alf.plist
    /user/libexec/ApplicationFirewall/com.apple.alf.plist

    This post will show you how to find these files with Finder
     
  9. FireBender thread starter macrumors newbie

    Joined:
    Jul 27, 2010
    #9
    I was successful at finding and deleting the files. Restarted, however wifi is still not working.
    I tested it at a family member's house and the issue is within my own laptop.
     
  10. karsten macrumors 6502a

    karsten

    Joined:
    Sep 3, 2010
    #10
    did you take your laptop on the vacation and use it? sounds like you might have residual default gateway settings in there or something from another network
     

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