JPB63
Level 1 (0 points)

Q: Wireless connection

I have a mbp and it suddenly lost the ability to connect wirelessly to the Internet. I have an IP number and the router it's fine. I have entered and re entered the password. But nothing seems to be working. I am really frustrated and would appreciate any suggestions or help.

MacBook Pro, Mac OS X (10.7), 13" MBP, 8 gb RAM, Lion

Posted on Oct 15, 2012 1:22 PM

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JPB63

Q: Wireless connection

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  • by CMCSK,

    CMCSK CMCSK Oct 15, 2012 1:33 PM in response to JPB63
    Level 6 (10,875 points)
    Oct 15, 2012 1:33 PM in response to JPB63

    Change your router channel.  Sometimes this is all you will have to do.

     

    Power cycling the router.  Read the router's user manual or contact their tech support for instructions.

     

    System Preferences/Internet & Network/Network

    Unlock the padlock

    Locations:  Automatic

    Highlight Airport

    Click the Assist Me button

    In the popup window click the Diagnostic button.

     

    System Preferences/Network- Unlock padlock.  Highlight Airport.  Network Name-select your name.  Click on the Advanced button.  Airport/Preferred Networks-delete all that is not your network.

    Place a check mark next to "Remember networks this computer has joined."  Click the OK button and lock the padlock.  Restart your computer.

     

     

    http://support.apple.com/kb/TS1920 Mac OS: How to release and renew a DHCP lease

     

     

    No internet connection (wireless)

    Check to see if an extra entry is present in the DNS Tab for your wireless connection (System Preferences/Network/Airport/Advanced/DNS).

    Delete all extra entries that you find.

    Place a check mark next to "Remember networks this computer has joined."

     

     

    Other resources to check into:

    Troubleshooting Wi-Fi issues in OS X Lion and Mac OS X v10.6

     

    Configuring 802.1X in Mac OS X Lion and Later

     

    Non-responsive DNS server or invalid DNS configuration can cause long delay before webpages load Netspot

     

    How to diagnose and resolve Wi-Fi slow-downs

     

    Pv6 troubleshooting

     

    What Affects Wireless Internet?

     

    Solutions for connecting to the Internet, setting up a small network, and troubleshooting

     

     

    Mac OS X (10.7)

     

    Use Software Update to update your os and anything else that needs to be updated.

     

     

     

     

     

     

     

     

     

     

    dancingsmilie.gif

  • by JPB63,

    JPB63 JPB63 Oct 16, 2012 10:57 AM in response to CMCSK
    Level 1 (0 points)
    Oct 16, 2012 10:57 AM in response to CMCSK

    THanks for this detailed response. I have tried everything and am at my wit's end.  Could it be a blocked port? If so, how to open it?  This started after traveling through an airport and using free wireless. I was asked if I wanted to use it and I responded positively. But once I left the airport and returned home, the wireless features of the computer do not access the outside world (cable connections work, though). What I mean is: I get an IP number from the router/WAP but there is no internet connection. Could that be a sympton of Firewall blockage or a port being closed? 

     

    Right now I am not home and not able to download/update the system software (which may fix this problem). And I need a wifi connection for work and a presentation later this week.

     

    Thanks.

  • by CMCSK,

    CMCSK CMCSK Oct 16, 2012 1:05 PM in response to JPB63
    Level 6 (10,875 points)
    Oct 16, 2012 1:05 PM in response to JPB63

    You may do better if you post in the Mac OS X v10.7 Lion forum area since that is the os you are using.  The users there can offer other solutions for you to try.  I do not use Lion.

     

     

     

     

     

     

     

     

     

     

     

    dancingsmilie.gif

  • by JPB63,

    JPB63 JPB63 Oct 17, 2012 6:40 AM in response to CMCSK
    Level 1 (0 points)
    Oct 17, 2012 6:40 AM in response to CMCSK

    thanks for the recommendation. But, actually, the computer about which I am writing uses OSX 10.5. It's an old clunker that I carry on trips to rougher spots so that, if it's lost or damaged, I won't feel too bad nor lose too much. Most of the work I access is stored in the cloud.  However, I'll look in the other chat areas, too, and maybe there's something there that can clear up this problem. I thank you for your help.