i350 ethernet adapter disconnected during normal work

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i350 ethernet adapter disconnected during normal work

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I'm using two i350 components (as two mini PCIe modules).

Every module has i350 with x1 lane of PCIe and two 10/100/1000 ethernet interfaces.

I'm using only 3 out of 4 ethernet interfaces available and I'm configuring them to 100 FULL duplex (the 4th interfaceis disabled in device manager)

I also use a 82579 on my board as10/100/1000 ethernet configured auto negotiation.

OS= win XP

During normal operation one of the 100Mbps ports disconnect for few second and connect again .

I see Event ID 27 in the event viewer of the operating system.

BIOS is updated.

What is the reason and how can I solve it.

Thank you

Raz

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