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MikroTik App
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Joined: Mon Mar 24, 2014 10:33 am

RB2011UiAS Excessive or late collision, link duplex mismatch

Mon Mar 31, 2014 8:27 am

We are having this problem.

RB2011UiAS with LCD
Router OS 6.11
Routerboard Firmware 3.12

Error we getting:

We run PPPOE authentication over ether1 on all our MikroTik RB's and need to keep rebooting them. Not sure what the problem or issue is, but could be related to the software upgrades or firmware upgrades.

We also keep getting this error on the port running PPPOE "excessive or late collision, link duplex mismatch"
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Re: RB2011UiAS Excessive or late collision, link duplex mism

Mon Mar 31, 2014 2:12 pm

What is the port connected to at the other end? Is it set to auto-negotiate? What speed/duplex does it negotiate?
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