WiFi 5GHz down and 2.4GHz will not connect

Hello.
From time to time I have such a problem as in the subject, router restart helps

Device: Turris Omnia
WiFi card: R11e-2HPnD and R11e-5HacT
OS version: 4.0.5

Here’s what I found in the logs, repeated entries:

root@Turris_Omnia:~# cat /var/log/messages
Mar 28 09:33:52 Turris_Omnia kernel: [147499.660651] ath10k_warn: 90 callbacks suppressed
Mar 28 09:33:52 Turris_Omnia kernel: [147499.660658] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.711854] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.763045] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.814245] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.865436] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.916633] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147499.967833] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147500.019033] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147500.070237] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:52 Turris_Omnia kernel: [147500.121441] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.678010] ath10k_warn: 90 callbacks suppressed
Mar 28 09:33:57 Turris_Omnia kernel: [147504.678017] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.729215] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.780409] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.831611] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.882801] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.934000] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147504.985201] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147505.036405] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147505.087599] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
Mar 28 09:33:57 Turris_Omnia kernel: [147505.138798] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon

and

root@Turris_Omnia:~# dmesg
[147489.984346] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147490.035539] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147490.086743] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147494.643301] ath10k_warn: 89 callbacks suppressed
[147494.643309] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147494.694512] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147494.745697] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147494.796892] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147494.848095] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147494.877241] ath10k_pci 0000:02:00.0: failed to recalculate rts/cts prot for vdev 0: -11
[147494.899291] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147494.950502] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147495.001689] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147495.052879] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147499.660651] ath10k_warn: 90 callbacks suppressed
[147499.660658] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147499.711854] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147499.763045] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147499.814245] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147499.865436] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147499.916633] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147499.967833] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147500.019033] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147500.070237] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 0, skipped old beacon
[147500.121441] ath10k_pci 0000:02:00.0: SWBA overrun on vdev 1, skipped old beacon
[147504.678010] ath10k_warn: 90 callbacks suppressed