Ethernet link speed only 10 Mbit/s wifi speed is 60+

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,

Chris

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

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?

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

Have you tried a different Ethernet cord?

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.

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,

Chris

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).