NUC11PAHi5 Ethernet adapter reset occasionally every few hours

[albert_woo]

OS: Ubuntu 20.04.2 LTS, kernel version 5.8.0 

Also tested in kernel 5.11.19, Ethernet adapter reset randomly

logs showing as below:

wjx@wjx-NUC11PAHi5:~$ cat /var/log/syslog | grep igc
Jun  3 08:01:43 wjx-NUC11PAHi5 kernel: [105776.829731] igc 0000:59:00.0 enp89s0: NIC Link is Down
Jun  3 08:01:47 wjx-NUC11PAHi5 kernel: [105781.086329] igc 0000:59:00.0 enp89s0: NIC Link is Up 2500 Mbps Full Duplex, Flow Control: RX/TX
Jun  3 10:16:39 wjx-NUC11PAHi5 kernel: [113873.373007] igc 0000:59:00.0 enp89s0: NIC Link is Down
Jun  3 10:16:43 wjx-NUC11PAHi5 kernel: [113877.505924] igc 0000:59:00.0 enp89s0: NIC Link is Up 2500 Mbps Full Duplex, Flow Control: RX/TX
Jun  3 10:53:01 wjx-NUC11PAHi5 kernel: [116055.373126] igc 0000:59:00.0 enp89s0: NIC Link is Down
Jun  3 10:53:05 wjx-NUC11PAHi5 kernel: [116059.553153] igc 0000:59:00.0 enp89s0: NIC Link is Up 2500 Mbps Full Duplex, Flow Control: RX/TX
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.848971] igc 0000:59:00.0 enp89s0: NIC Link is Down
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.858990] igc 0000:59:00.0 enp89s0: Register Dump
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.858993] igc 0000:59:00.0 enp89s0: Register Name   Value
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859083] igc 0000:59:00.0 enp89s0: CTRL            181c0641
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859086] igc 0000:59:00.0 enp89s0: STATUS          40780681
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859089] igc 0000:59:00.0 enp89s0: CTRL_EXT        10000040
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859092] igc 0000:59:00.0 enp89s0: MDIC            18017949
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859095] igc 0000:59:00.0 enp89s0: ICR             00000001
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859098] igc 0000:59:00.0 enp89s0: RCTL            04408022
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859106] igc 0000:59:00.0 enp89s0: RDLEN[0-3]      00001000 00001000 00001000 00001000
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859114] igc 0000:59:00.0 enp89s0: RDH[0-3]        000000b2 000000ed 000000b6 0000004f
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859121] igc 0000:59:00.0 enp89s0: RDT[0-3]        000000b1 000000ec 000000b5 0000004e
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859129] igc 0000:59:00.0 enp89s0: RXDCTL[0-3]     02040808 02040808 02040808 02040808
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859136] igc 0000:59:00.0 enp89s0: RDBAL[0-3]      08112000 0fb0d000 0a7eb000 0fb49000
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859144] igc 0000:59:00.0 enp89s0: RDBAH[0-3]      00000001 00000001 00000001 00000001
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859147] igc 0000:59:00.0 enp89s0: TCTL            a503f0fa
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859154] igc 0000:59:00.0 enp89s0: TDBAL[0-3]      08112000 0fb0d000 0a7eb000 0fb49000
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859161] igc 0000:59:00.0 enp89s0: TDBAH[0-3]      00000001 00000001 00000001 00000001
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859168] igc 0000:59:00.0 enp89s0: TDLEN[0-3]      00001000 00001000 00001000 00001000
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859176] igc 0000:59:00.0 enp89s0: TDH[0-3]        000000d2 00000065 0000006e 00000082
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859183] igc 0000:59:00.0 enp89s0: TDT[0-3]        000000d2 00000065 0000006e 00000088
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859191] igc 0000:59:00.0 enp89s0: TXDCTL[0-3]     02100108 02100108 02100108 02100108
Jun  3 12:00:50 wjx-NUC11PAHi5 kernel: [120123.859192] igc 0000:59:00.0 enp89s0: Reset adapter
Jun  3 12:00:54 wjx-NUC11PAHi5 kernel: [120128.029665] igc 0000:59:00.0 enp89s0: NIC Link is Up 2500 Mbps Full Duplex, Flow Control: RX/TX
Jun  3 16:43:40 wjx-NUC11PAHi5 kernel: [137094.163907] igc 0000:59:00.0 enp89s0: NIC Link is Down
Jun  3 16:43:44 wjx-NUC11PAHi5 kernel: [137098.321022] igc 0000:59:00.0 enp89s0: NIC Link is Up 2500 Mbps Full Duplex, Flow Control: RX/TX

[Alberto_R_Intel]

albert_woo, Thank you for posting in the Intel® Communities Support.

In reference to this scenario, just to let you know, the Operating System that was tested and validated by Intel® is Windows* 10 64-bit, so all the troubleshooting steps and drivers that we have available on our website are intended for that specific OS, as you can confirm in the link below, please select "Intel® NUCs with 11th Generation Intel® Core™ Processors" tab:

https://www.intel.com/content/www/us/en/support/articles/000005628/intel-nuc.html

https://downloadcenter.intel.com/product/205040/Intel-NUC-11-Performance-kit-NUC11PAHi5

Just to confirm, is Kernel updated to the latest version?

Did you install any particular driver version for Linux?

Please attach the SSU report so we can verify further details about the components in your platform, please check all the options in the report including the one that says "3rd party software logs":

https://downloadcenter.intel.com/download/26735/Intel-System-Support-Utility-for-the-Linux-Operating-System

Any questions, please let me know.

Regards,

Albert R.

Intel Customer Support Technician

[Alberto_R_Intel]

albert_woo, I just wanted to check if you saw the information posted previously and if you need further assistance on this matter?

Regards,

Albert R.

Intel Customer Support Technician

[albert_woo]

Hi Alberto_R_Intel,

Sorry for late response, after one week test, this issue never come once I replace the cable, both cable are high quality CAT6E, but I have no idea why a cable could cause such issue. Thanks for your response on this issue.

Regards,

Albert

[Alberto_R_Intel]

Hi albert_woo, No problem at all, thank you very much for providing that information.

Perfect, excellent, we are glad to know that the problem got fixed by replacing the cable and now the Ethernet adapter of the Intel® NUC is working properly.

Any other inquires, do not hesitate to contact us again.

Regards,

Albert R.

Intel Customer Support Technician