Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

RMJ fabrication
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30 May 2026 18:51 #346779 by RMJ fabrication

Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

I still get the same error after disabling eee

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PCW
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30 May 2026 20:37 #346781 by PCW

Replied by PCW on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

is the

ip a

result still reasonable?

What is the host hardware?

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RMJ fabrication
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30 May 2026 21:22 #346782 by RMJ fabrication

Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

I am not sure how do I find host hardware?

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RMJ fabrication
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30 May 2026 21:50 #346783 by RMJ fabrication

Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

So some background information my plasma table electronics and mesa 7i76e are not new the PC is new a newer HP elite 8300 USDT I swapped it out recently following issues with this post forum.linuxcnc.org/plasmac/53087-qtplasm...e-0-in-middle-of-cut

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PCW
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30 May 2026 21:57 #346784 by PCW

Replied by PCW on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

OK a 8300 USDT uses Intel hardware and should be fine

Is AMT disabled in the BIOS?

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RMJ fabrication
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30 May 2026 22:43 #346785 by RMJ fabrication

Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

My bad the PC is actually a HP Elitedesk 800 G1 USDT

AMT is not disabled in BIOS where can I find those settings?

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rodw
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30 May 2026 23:40 #346786 by rodw

Replied by rodw on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

There are a lot more tuning settings required but lets get the main one
Can you type: echo $(nproc)
and then back in grub customizer add isolcpus=X where X = $(nproc)-1 from what is printed from the line above.
Then reboot.

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tommylight
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30 May 2026 23:50 #346787 by tommylight

Replied by tommylight on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Rod, no amount of tuning is gona help on a disconnected link.
-
Did you change the cable?
Do you have a USB-to-LAN adapter to test with?
Do you have another PC to test with, any PC with a different cable.
-

ip -s link show eno1

But, only after the Mesa is connected and trying to run LinuxCNC.

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PCW
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31 May 2026 00:27 #346788 by PCW

Replied by PCW on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

Yes, this does not seem to be a latency issue but a connection issue.
Not really sure what the cause is. I have a 800 G1 here running
LinuxCNC without any Ethernet connection issues so I don't know.

Is is possible to try another PC to try and isolate the issue?

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RMJ fabrication
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31 May 2026 01:50 #346791 by RMJ fabrication

Replied by RMJ fabrication on topic Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

So this is the current setup

And I have this HP PC here I can use for testing.

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Ethernet connection to Mesa 7i76e disconnecting on its own after one minute

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