Below is an excerpt from a near–clean Ubuntu 25.04 install that lost network connectivity midday. The machine remained in Wi-Fi range after reboot (see log excerpt below), and - being constantly connected to power - issues related to wake/sleep cycles can be largely ruled out. The secondary USB-C hub’s wired connection remained stable, as expected. All of the recurring “Activation of network connection failed” pop-ups referred to the wireless interface attempting - and failing - to reconnect.
6.14.0-15-generic
Package: linux-firmware
Version: 20250317.git1d4c88ee-0ubuntu1
Priority: optional
Section: misc
Origin: Ubuntu
Maintainer: Ubuntu Kernel Team kernel-team@lists.ubuntu.com
Original-Maintainer: Ubuntu Kernel Team kernel-team@lists.ubuntu.com
Bugs: OpenID transaction in progress
Installed-Size: 573 MB
Provides: atmel-firmware
Recommends: firmware-sof-signed
Conflicts: atmel-firmware
Breaks: amd64-microcode (<= 3.20220411.1ubuntu1), initramfs-tools (<< 0.142ubuntu8~), linux-firmware-raspi2 (<= 1.20190819-0ubuntu2), linux-firmware-snapdragon (<= 1.2-0ubuntu1)
Replaces: atmel-firmware, linux-firmware-snapdragon (<= 1.2-0ubuntu1), linux-restricted-common
Download-Size: 573 MB
APT-Manual-Installed: no
APT-Sources: http://de.archive.ubuntu.com/ubuntu plucky/main amd64 Packages
Description: Firmware for Linux kernel drivers
This package provides firmware used by Linux kernel drivers.
[ 11.323109] mt7925e 0000:c0:00.0 wlp192s0: renamed from wlan0
[ 15.470423] wlp192s0: authenticate with 30:34:22:08:9a:c7 (local address=d8:b3:2f:bd:ba:3f)
[ 15.826921] wlp192s0: send auth to 30:34:22:08:9a:c7 (try 1/3)
[ 15.842331] wlp192s0: authenticated
[ 15.846336] wlp192s0: associate with 30:34:22:08:9a:c7 (try 1/3)
[ 15.869969] wlp192s0: RX AssocResp from 30:34:22:08:9a:c7 (capab=0x1111 status=0 aid=7)
[ 15.909863] wlp192s0: associated
[ 16.261458] wlp192s0: Limiting TX power to 27 (30 - 3) dBm as advertised by 30:34:22:08:9a:c7
[29013.335436] wlp192s0: failed to reserve channel context for channel switch, disconnecting (err=-95)
[29013.864723] wlp192s0: AP is in CSA process, reject auth
[29014.651336] wlp192s0: authenticate with 30:34:22:02:7f:67 (local address=d8:b3:2f:bd:ba:3f)
[29014.669297] wlp192s0: send auth to 30:34:22:02:7f:67 (try 1/3)
[29014.690242] wlp192s0: send auth to 30:34:22:02:7f:67 (try 2/3)
[29014.706249] wlp192s0: send auth to 30:34:22:02:7f:67 (try 3/3)
[29014.722670] wlp192s0: authentication with 30:34:22:02:7f:67 timed out
[29016.027436] wlp192s0: authenticate with 30:34:22:08:9a:c6 (local address=d8:b3:2f:bd:ba:3f)
[29016.139307] wlp192s0: send auth to 30:34:22:08:9a:c6 (try 1/3)
[29016.159503] wlp192s0: send auth to 30:34:22:08:9a:c6 (try 2/3)
[29016.178666] wlp192s0: send auth to 30:34:22:08:9a:c6 (try 3/3)
…same spam repeating
[32343.712042] wlp192s0: authentication with 30:34:22:08:9a:c7 timed out
[32362.577996] wlp192s0: authenticate with 30:34:22:08:9a:c7 (local address=d8:b3:2f:bd:ba:3f)
[32362.595228] wlp192s0: send auth to 30:34:22:08:9a:c7 (try 1/3)
[32362.616628] wlp192s0: send auth to 30:34:22:08:9a:c7 (try 2/3)
[32362.635925] wlp192s0: send auth to 30:34:22:08:9a:c7 (try 3/3)
[32362.654105] wlp192s0: authentication with 30:34:22:08:9a:c7 timed out
put in airplane mode and back (disable wifi didnt help)
[32386.657599] wlp192s0: authenticate with 30:34:22:08:9a:c7 (local address=d8:b3:2f:bd:ba:3f)
[32386.674615] wlp192s0: send auth to 30:34:22:08:9a:c7 (try 1/3)
[32386.682750] wlp192s0: authenticated
[32386.685952] wlp192s0: associate with 30:34:22:08:9a:c7 (try 1/3)
[32386.708805] wlp192s0: RX AssocResp from 30:34:22:08:9a:c7 (capab=0x1111 status=0 aid=7)
[32386.747834] wlp192s0: associated
[32386.889223] wlp192s0: Limiting TX power to 23 (23 - 0) dBm as advertised by 30:34:22:08:9a:c7
The good news is the connection now seems to be stable - I’m no longer getting any more disconnections.
The bad news is it’s still slow. Never more than 90Mbps on any speed test, with devices right next to it getting far higher speeds (and Windows on the same device getting very high speeds). This is whilst connected to a WiFi 7 AP.