Using my MBP makes my router stop working.

Discussion in 'MacBook Pro' started by Hieu, Nov 24, 2011.

  1. Hieu, Nov 24, 2011
    Last edited: Nov 24, 2011

    Hieu macrumors member

    Feb 18, 2009
    Whenever I connect to my home router, the internet will just stop working and anyone in my house that is connected to it will get disconnected. It will reconnect itself after a few mins but 10-15 mins later, it will disconnect everyone again.
    My brother and sister both have MacBooks and it doesn't happen to them at all. It's come to the point where I have to warn everyone that I'm about to open my MacBook. -_-
    I'd appreciate any help. Thanks!

    Edit - Some more info. I am using the AT&T Gateway router. The light always turns red when the internet has been disconnected. I've tried disconnecting and reconnecting the router and I've also tried "DHCP Lease." Neither works. :T
  2. Spencer Reynen macrumors member

    Apr 3, 2011
    Are you connected via WiFi or Ethernet cable (or something else?)
  3. mape2k macrumors regular

    Apr 18, 2011
    Is every device's connection to the Wi-Fi getting disconnected or just the connection to the internet? Have you tried connecting a device with an Ethernet cable and see if that still disconnects the computer?
  4. miniConvert macrumors 68040


    Mar 4, 2006
    Kent, UK - the 'Garden of England'.
    What IP address is your MBP using? Check in System Prefs > Network > WiFi > Advanced > TCP/IP. It should probably be set to "Using DHCP" so the router can assign details to you.

    Do you ever get warned that your IP address is in use?

    Probably completely wrong but worth checking!
  5. SayMilesAway macrumors regular


    Nov 11, 2011
    This happened to me the first few times I synced my iPhone wirelessly. It would "shutdown" my router and I would have to power cycle it.
  6. Hieu thread starter macrumors member

    Feb 18, 2009
    Every device that is connected to the internet. The desktop pc that's connected by ethernet gets disconnected too.

    Yeah it says "Using DHCP." My IP address is

    When my brother first got his MacBook, I used to see "Your IP address is in use" a few times but I haven't seen it lately.

    I'm connected by Wi-FI.

    Thanks everyone for taking your time to reply.
  7. warvanov macrumors 6502a

    Oct 13, 2011
    I've been having a similar problem. A few times when I've been using my MBP I lose my wifi connection. The router continues to function (others connected to it via ethernet don't lose their connection) but I lose my connection to the internet even though it still shows that I'm connected to the router via wifi. Other devices connected to the wifi also lose their internet connection. When I reboot the router I get the error that another device is using my IP address.
  8. Hieu thread starter macrumors member

    Feb 18, 2009
    Bumping this just once. I'm still having the same problem and it's frustrating.
  9. MartyF81 macrumors 6502

    Sep 5, 2010
    Chicago IL
    If you have access to the router control panel, go in there and find the DHCP allocation area. Assign static IP addresses to all the "normally" connected devices.

    Sounds to me like a device is not respecting DHCP lease times.... assigning permanent IP addresses should help with that so that none of your devices ever try and use the same IP.

    Also, ditch the ATT Router. Junk.

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