Previous 1 2 Next 20 Replies Latest reply: Oct 12, 2012 11:54 AM by Christian A. Burkert
schroeders12 Level 1 (0 points)

I'm connected to my universities network. For wifi, I usually get speeds in excess of 60 mbit/s. When I'm connected to ethernet (wifi is spotty sometimes) it's super slow. I only get 9 mbit/s for down and up. Meanwhile, my roommates computer gets the same speeds on both ethernet and wifi (using the same cable that I'm using)


I have a late 2009 macbook pro with the NVIDIA model # MCP79-1

MacBook Pro, OS X Mountain Lion (10.8.2), late 2009
  • Christian A. Burkert Level 2 (305 points)

    hi there,


    older networks sometimes do offer 10 mbps only. That was the common speed about 10 to 15 years ago.


    Same goes for older WLAN cards, at the beginning (also about 10 years ago) WLAN did not offer more than 11 mbps.


    Hope this helps,



  • schroeders12 Level 1 (0 points)

    What do you mean by older networks? My school's network? My friend's ethernet speed is much faster than mine, and he's using a PC

  • Templeton Peck Level 9 (61,397 points)

    What are your network adapter settings configured for?  10Base-T?  100BaseT?  1000BaseT

  • Christian A. Burkert Level 2 (305 points)

    I was referring to the network in your university / school that, as you mentioned offers you only about 9 mbit/s. If that network was installed, let's say, 15 years ago, then it would be safe to assume that it offers 10 mbit/s as best possible speed.


    Does your friend get significantly higher speeds on his PC out of the same Ethernet network that offers you 9 mbit/s?

  • schroeders12 Level 1 (0 points)

    10 Base-T. I've tried changing it to the 100 and then the 1000BaseT, but I lose the IP address, and the status in network utility goes to inactive

  • Christian A. Burkert Level 2 (305 points)

    then 10 mbit/s is indeed the best possible speed in that network.

  • schroeders12 Level 1 (0 points)

    "Does your friend get significantly higher speeds on his PC out of the same Ethernet network that offers you 9 mbit/s?"


    Yes, much higher speeds. Like 50+ And, I've asked around. People who use ethernet get faster speeds too. I even contacted our IT department and they said that I should be getting significantly faster speeds than 9 mbit/s on ethernet 


    So clearly, it's a problem on my end

  • Christian A. Burkert Level 2 (305 points)

    Have you tried a different Ethernet cord?

  • schroeders12 Level 1 (0 points)

    yes, same results.

  • Christian A. Burkert Level 2 (305 points)

    ok, then let's check the settings Network within System Preferences


    under Ethernet; click on Further Options and select the last tab to the right, which should read Hardware


    first line lists the MAC address of your ethernet card


    2nd line labelled Configuration, should read Automatically


    3rd line labelled Speed, should read 1000baseT


    4th line labelled Duplex, should read Full Duplex


    5th line labelled MTU, should read Standard (1500)


    If there is any problem, try deleting the Ethernet entry in the list of network devices on the main network settings page, restart OSX, it should report "new hardware found" and allow it to configure. Maybe that can clear the problem.

  • schroeders12 Level 1 (0 points)

    Did everything you suggested. Deleted and then re-added it. Still only 10BaseT/UTP

  • Christian A. Burkert Level 2 (305 points)

    ok, then let's try something else


    launch Network Utility from /Applications/Utilities


    there in the left half of that program's window, select your Ethernet port (usually named en0) and check on the right half the Transfer statistics. It lists five lines with numbers there.


    1st: sent packets

    2nd: send errors

    3rd recv packets

    4th  recv errors

    5th collisions


    Please note the 2nd, 4th and 5th value. If any of these three values is (significantly) greater than zero, a hardware problem is likely.


    In that case, try connecting your MacBookPro to an alternate socket (for example the one your roommate usually uses) or elsewhere. If you get better results there, your socket or cord is defective. If the errors persist, it is likely that the problem lies within the logic board of your MacBookPro.


    Hope this helps,



  • schroeders12 Level 1 (0 points)

    The 2nd, 4th, and 5th are all zero. Also, we're using the same cable and port when I switch from mine to his laptop

  • Christian A. Burkert Level 2 (305 points)

    Then, in theory, your connection speed should indeed by much higher.


    Do you see a line labelled "Link Speed" on the right half of the Network Utility window? I assume it says 10 Mbit/s, correct?


    Try starting OSX in safe mode and check the link speed there.


    To start in safe mode, hold down the Shift key, immediately after you hear the startup tone. Release the Shift key when you see the progress indicator (looks like a spinning gear).

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