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ASIX AX88179 Gigabit Ethernet Randomly Disconnects and Requires Restart to Reconnect due to Not Being Detectable by OS #3428

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BugsyReportsy opened this issue Dec 26, 2024 · 0 comments

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BugsyReportsy commented Dec 26, 2024

Distribution (run cat /etc/os-release):

NAME="Pop!_OS"
VERSION="22.04 LTS"
ID=pop
ID_LIKE="ubuntu debian"
PRETTY_NAME="Pop!_OS 22.04 LTS"
VERSION_ID="22.04"
HOME_URL="https://pop.system76.com"
SUPPORT_URL="https://support.system76.com"
BUG_REPORT_URL="https://github.com/pop-os/pop/issues"
PRIVACY_POLICY_URL="https://system76.com/privacy"
VERSION_CODENAME=jammy
UBUNTU_CODENAME=jammy
LOGO=distributor-logo-pop-os

Related Application and/or Package Version (run apt policy $PACKAGE NAME):

Kernel, Ethernet, Power Management (maybe?)

Issue/Bug Description:

ASIX AX88179 Gigabit Ethernet on any USB C dock/hub will randomly disconnect in a way where its no longer detected by the OS and requires a system reboot to reconnect. Wired connection is still undetected even after plugging then unplugging the USB host and Ethernet cables; this problem persists even after plugging in a separate USB hub that uses the same Ethernet controller.

Steps to reproduce (if you know):

Wired connection inexplicably drops after several hours of use at complete random.

Expected behavior:

Wired internet connection drops and ASIX AX88179 Gigabit Ethernet is no longer detected or can be detected, verified by with inxi -N and lsusb. ASIX AX88179 Gigabit Ethernet can't be reconnected even after restarting NetworkManager service or reloading udev and requires a system reboot.

Other Notes:

  • In my experience, this bug can happen after uptimes that range from half a day to over a week on Pop!. From my experience with Linux Mint and EndeavourOS, this bug happened more frequently after less time.
  • This bug seems to have been around since kernel 5.11 and was supposed to be fixed in kernel 6.x, yet there are multiple posts on the internet in every popular distro describing similar behavior with ASIX adapters specifically.
  • The USB docking station and USB hubs I used to test this were of different brands yet used the same ASIX AX88179 Gigabit Ethernet.
  • After my laptops would lose connection from this bug, I was still able to have a wired connection with other USB C devices such as my Steam Deck, ruling out my router as a culprit.
  • On both laptops I used my USB C docks/hubs on, both were connected via their Thunderbolt 4 ports.
  • According to inxi -N, ASIX AX88179 Gigabit Ethernet is using the cdc_ncm driver instead of the ax88179_178a driver.
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