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Hi.
I use a Thinkpad T490 with Arch Linux. It has an Intel Wireless-AC 9560 160MHz Wifi card. Basically the wifi works and I have a good throughput. However, the connection is lost every 15-20 minutes. Shortly afterwards the connection is re-established. I have the following in the journal:
Feb 05 15:54:39 maik-t490 systemd[1]: Starting Time & Date Service...
Feb 05 15:54:39 maik-t490 systemd[1]: Started Time & Date Service.
Feb 05 15:55:09 maik-t490 systemd[1]: systemd-timedated.service: Deactivated successfully.
Feb 05 16:09:12 maik-t490 systemd[1]: Starting Cleanup of Temporary Directories...
Feb 05 16:09:13 maik-t490 systemd[1]: systemd-tmpfiles-clean.service: Deactivated successfully.
Feb 05 16:09:13 maik-t490 systemd[1]: Finished Cleanup of Temporary Directories.
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed_beacons:19, missed_beacons_since_rx:1
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed_beacons:20, missed_beacons_since_rx:2
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Feb 05 16:17:47 maik-t490 kernel: iwlwifi 0000:00:14.3: missed_beacons:21, missed_beacons_since_rx:3
Feb 05 16:17:47 maik-t490 kernel: wlp0s20f3: Connection to AP MAC_OF_AP lost
Feb 05 16:17:47 maik-t490 dhcpcd[16476]: sending signal TERM to pid 1593
Feb 05 16:17:47 maik-t490 dhcpcd[16476]: waiting for pid 1593 to exit
Feb 05 16:17:47 maik-t490 dhcpcd[1594]: received SIGTERM, stopping
Feb 05 16:17:47 maik-t490 dhcpcd[1594]: wlp0s20f3: removing interface
Feb 05 16:17:47 maik-t490 dhcpcd[1594]: dhcpcd exited
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: authenticate with MAC_OF_AP (local address=XXX)
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: send auth to MAC_OF_AP (try 1/3)
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: authenticated
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: associate with MAC_OF_AP (try 1/3)
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: RX AssocResp from MAC_OF_AP (capab=0x1111 status=0 aid=7)
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: associated
Feb 05 16:17:53 maik-t490 kernel: wlp0s20f3: Limiting TX power to 23 (23 - 0) dBm as advertised by MAC_OF_AP
Feb 05 16:17:53 maik-t490 dhcpcd[16497]: dhcpcd-10.1.0 starting
Feb 05 16:17:53 maik-t490 dhcpcd[16500]: DUID XXX
Feb 05 16:17:53 maik-t490 dhcpcd[16500]: wlp0s20f3: connected to Access Point: MY_SSID
Feb 05 16:17:53 maik-t490 dhcpcd[16500]: wlp0s20f3: IAID XXX
Feb 05 16:17:55 maik-t490 dhcpcd[16500]: wlp0s20f3: rebinding lease of 10.1.1.189
Feb 05 16:17:55 maik-t490 dhcpcd[16500]: wlp0s20f3: probing address 10.1.1.189/24
Feb 05 16:18:00 maik-t490 dhcpcd[16500]: wlp0s20f3: leased 10.1.1.189 for 5771 seconds
Feb 05 16:18:00 maik-t490 dhcpcd[16500]: wlp0s20f3: adding route to 10.1.1.0/24
Feb 05 16:18:00 maik-t490 dhcpcd[16500]: wlp0s20f3: adding default route via 10.1.1.1So there seems to be a lack of beacons. I sit very close to the access point (Unifi U6 Pro), and even when the device is right next to it, this error occurs.
I have already tried the following settings of the iwlwifi module without any improvement:
options iwlwifi power_save=0or
options iwlwifi 11n_disable=8 power_save=0 bt_coex_active=N
options iwlmvm power_scheme=1The Arch Wiki says:
If you have an 802.11ax (Wi-Fi 6) access point and have problems detecting the beacons or an unreliable connection, review Intel Article 54799
So I actually use an AX access point, but the content behind this link has no relation to Linux, or I don't understand it.
There must be several Arch users who use a T490 and an AX access point. Does anyone else have this problem? Does anyone have a solution? Where can I start?
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I facing a similar issue with a Thinkpad E14
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:19, missed_beacons_since_rx:1
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:20, missed_beacons_since_rx:1
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:21, missed_beacons_since_rx:2
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:47 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:22, missed_beacons_since_rx:3
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:23, missed_beacons_since_rx:1
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:24, missed_beacons_since_rx:2
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed beacons exceeds threshold, but receiving data. Stay connected, Expect bugs.
Jun 17 09:26:48 jma-21m70012ge kernel: iwlwifi 0000:00:14.3: missed_beacons:25, missed_beacons_since_rx:3
Jun 17 09:26:48 jma-21m70012ge kernel: wlan0: Connection to AP d4:01:c3:f6:c5:aa lostnetwork adapter:
00:14.3 Network controller: Intel Corporation Meteor Lake PCH CNVi WiFi (rev 20)my access point is a mikrotik cap ax
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