10 GB connection dropping on SYS-5028D-TN4T

I have four of the wonderful Supermicro mini - towers (details here). I really like them.  But just recently I have had two incidents of the 10 GB port dropping.  This would impact my storage and vMotion networks.

The network is an Intel X552/X557-AT 10GBASE-T with a NetGear 10 GB 8 port switch (model 708 I think).

This did not happen to me on the 1.3 BIOS but it does on the 2.0.

The workaround is to shutdown your host, disconnect the power adapter for at least 20 seconds, plug it back in, power up and you will be good.  This has worked both times I have lost the network connection.

I am told that this has been reported to Supermicro and Intel.  At least if this happens to you you know how to get around it.


  • 10/13/18 - working with both Intel and Supermicro on this.  Very happy to help and excited they are so interested to do something.
  • 10/12/18 - I heard from a reader that I need to report this directly to Supermicro.  Via phone at 408 503 8000 and option 2 or [email protected]. However, when I called they asked me to email the info, including serial number - found on the Hardware info screen of the KVM. Definitely better to email.

I will update this article as I learn more.


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2 thoughts on “10 GB connection dropping on SYS-5028D-TN4T

  1. You need to report this directly yourself to SuperMicro for tracking and direct resolution processes — they will need to track it. please encourage your readers to report this to SuperMicro - efforts in numbers

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