There are three ethernet chips, but I only find one physical port on the board. See some error messages on [8086:43ac] and [8086:43a2]. (Please see comment#7 & #8 for detailed log)
1. 00:1e.4 Ethernet controller: Intel Corporation Device 43ac Kernel driver in use: intel-eth-pci Kernel modules: dwmac_intel [ 23.282903] pci 0000:00:1e.4: [8086:43ac] type 00 class 0x020000 [ 93.499085] intel-eth-pci 0000:00:1e.4 enp0s30f4: validation of sgmii with support 0000000,00000000,00006280 and advertisement 0000000,00000000,00006280 failed: -22 [ 93.499377] intel-eth-pci 0000:00:1e.4 enp0s30f4: stmmac_open: Cannot attach to PHY (error: -22) 2. 00:1e.5 Ethernet controller: Intel Corporation Device 43a2 Kernel modules: dwmac_intel [ 23.527497] pci 0000:00:1e.5: [8086:43a2] type 00 class 0x020000 [ 58.438015] intel-eth-pci 0000:00:1e.5: stmmac_dvr_probe: MDIO bus (id: 1) registration failed [ 73.462738] intel-eth-pci: probe of 0000:00:1e.5 failed with error -22 3. 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (14) I219-V Kernel driver in use: e1000e Kernel modules: e1000e [ 24.295474] pci 0000:00:1f.6: [8086:15fa] type 00 class 0x020000 [ 56.191486] e1000e 0000:00:1f.6 enp0s31f6: renamed from eth0 $ uname -a Linux tgl-h 5.11.0-1012-intel #14-Ubuntu SMP Wed Aug 11 08:52:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux $ ip addr ... 2: enp0s31f6: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000 link/ether 90:49:fa:06:99:dc brd ff:ff:ff:ff:ff:ff inet 192.168.1.113/24 brd 192.168.1.255 scope global dynamic noprefixroute enp0s31f6 valid_lft 81674sec preferred_lft 81674sec inet6 fe80::8236:91da:1f24:7fed/64 scope link noprefixroute valid_lft forever preferred_lft forever 3: enp0s30f4: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000 link/ether 88:ab:cd:11:01:23 brd ff:ff:ff:ff:ff:ff --- Image: iotg-focal-desktop-20210813.img -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-intel in Ubuntu. https://bugs.launchpad.net/bugs/1936903 Title: CDTS Network (Ethernet) failures Status in intel: New Status in Ubuntu: New Status in linux-intel package in Ubuntu: New Bug description: [Summary]Some networking tests fail [Steps to reproduce]Run Manual Non-Device Networking Tests $ sudo snap install checkbox20 $ sudo snap install cdts --classic --channel=20.04/stable $ cdts.checkbox-cli (X) Networking tests (manual) [X] + Non-device specific networking tests [Expected result]100% pass [Actual result] networking/info_device1_enp0s30f4 - skipped by tester (no second ethernet port on this board) networking/info_device2_UNKNOWN - failed by tester (should not have UNKNOWN devices) [Failure rate]100% [Additional information] CID: 202106-28175 SKU: system-manufacturer: Intel Corporation system-product-name: Tiger Lake Client Platform bios-version: TGLIFUI1.R00.3455.A03.2011281547 CPU: Genuine Intel(R) CPU 0000 @ 2.60GHz (16x) GPU: 00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:9a60] kernel-version: 5.11.0-1009-intel [Stage] Issue reported and logs collected right after it happened To manage notifications about this bug go to: https://bugs.launchpad.net/intel/+bug/1936903/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp