Blueberry iMac ethernet problems

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Posted:
in Genius Bar edited January 2014
My iMac is having issues connecting to my ethernet switch.

Ive got an old Netgear, which has two 100mbit ports, and 8 10mbit ports. It also allows for individual switching of full/half duplex on each port.



I can connect the iMac to one of the 100mbit ports, and it works perfectly. But with only two, I really want my primary PC and my network uplink to be on those two ports.



The problem is that when I plug the iMac into one of the 10mbit ports it falls back to half-duplex, and packets get dropped all over the floor.



I used ifconfig to set en0 to 10mbit, full-duplex, but then it wont even get a link ( works on the 100mbit port ). If I let it autoselect it'll link, but half-duplex.



Setting the switch to half-duplex doesnt help the dropped packets problem.



So, has anyone experienced the issue of not getting a link when you force en0 to 10mbit, full duplex?



Currently running Jaguar, all updates.

Comments

  • Reply 1 of 1
    dobbydobby Posts: 797member
    I've had loads of problems with some macs not being able to auto-negotiate properly on 10Mb. Setting the port to 10Mb/Full didn't help me either. I just had to leave the macs on 10Mb/Half and put up with a collision domain.



    Dobby.
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