I upgraded my server from 6.12.6 to 6.12.8. Since the upgrade my NIC will renegotiate connection speed every 45-90 seconds between 1gb and 10gb. After a number of renegotiations the connection fails. It can be restarted if I bring the NIC down and back up or disconnect and reconnect the cable between the NIC and the switch. I've replaced the switch, the cable and the gbic with no change. The only fix is to downgrade to 6.12.6 which works normally. The NIC is an Intel X540-AT2 using the ixgbe driver.
What can I do to resolve this?
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