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sudoku

Member

Registered: 2012-10-31

Posts: 95

Error changing net interface name

Hello,

Experiencing an intermittent issue with my wireless, where my WiFi interface is occasionally renamed wlan0 instead of its normal name wlp9s0. This results in a failure to autoconnect to my home network.

The card works.

# ip link set wlan0 up 
# iw dev wlan0 scan

I can normally scan for networks.

Diagnosing:

# journalctl | grep wlan0
Oct 04 09:09:01 hp250g3 kernel: IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
Oct 04 09:09:01 hp250g3 systemd-udevd[258]: Error changing net interface name 'wlan0' to 'wlp9s0': Device or resource busy
Oct 04 09:09:01 hp250g3 systemd-udevd[258]: could not rename interface '3' from 'wlan0' to 'wlp9s0': Device or resource busy
Oct 04 09:09:02 hp250g3 kernel: wlan0: authenticate with 08:bd:43:d0:4d:a0
Oct 04 09:09:02 hp250g3 kernel: wlan0: send auth to 08:bd:43:d0:4d:a0 (try 1/3)
Oct 04 09:09:02 hp250g3 kernel: wlan0: authenticated
Oct 04 09:09:02 hp250g3 kernel: wlan0: associate with 08:bd:43:d0:4d:a0 (try 1/3)
Oct 04 09:09:02 hp250g3 kernel: wlan0: RX AssocResp from 08:bd:43:d0:4d:a0 (capab=0x411 status=0 aid=6)
Oct 04 09:09:02 hp250g3 kernel: wlan0: associated
Oct 04 09:09:02 hp250g3 systemd-networkd[393]: wlan0: Gained carrier
Oct 04 09:09:02 hp250g3 kernel: IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Oct 04 09:09:04 hp250g3 systemd-networkd[393]: wlan0: Gained IPv6LL

I searched on the bbs for hints, but the only similar issues were caused by dhcpcd, which isn't running on my laptop.

What can I do?