Fedora openssh-server and iPad SFTP connection problem

Ask Fedora
1

I have a Thinkpad T400 running Fedora 32 Mate 64-bit with openssh-server. I also have an iPad (5th gen) model number MP2F2LL/A (iPadOS 14.3, 32GB with 19GB available). On the iPad, I’ve installed two apps, Documents by Readdle and FTPManager to connect to the Thinkpad.

I can usually connect for a while, but sometimes if I go into a directory with lots of subdirectories or sometimes when I’m viewing a group of documents, the network connection will crash on the Thinkpad running Fedora. I can then disable and enable networking to get it working again but this will happen several times while I’m using it.

How do I fix this problem? Thanks in advance.

2

You’re saying this kills the network completely on the laptop? Or just the ssh connection?

What do you see in the logs (with journalctl) when this happens?

3

Thanks for your reply. Yes, it kills the network on the laptop. I was listening to music from YouTube on the laptop once when this happened and the music stopped. I don’t see an error message with journalctl. Like, the network crashed at 2:53, I disabled and enabled networking at 2:54, and here’s the output from journalctl:

Jan 24 14:54:58 thinkpad sshd[10632]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:54:58 thinkpad sshd[10632]: Accepted password for worker9 from 192.168.1.252 port 51475 ssh2
Jan 24 14:46:18 thinkpad sshd[10373]: pam_unix(sshd:session): session closed for user worker9
Jan 24 14:46:18 thinkpad sshd[10374]: pam_unix(sshd:session): session closed for user worker9
Jan 24 14:46:18 thinkpad sshd[10382]: Disconnected from user worker9 192.168.1.252 port 51469
Jan 24 14:46:18 thinkpad sshd[10382]: Received disconnect from 192.168.1.252 port 51469:11: Shutdown
Jan 24 14:46:18 thinkpad sshd[10316]: pam_unix(sshd:session): session closed for user worker9
Jan 24 14:46:18 thinkpad sshd[10325]: Disconnected from user worker9 192.168.1.252 port 51467
Jan 24 14:46:18 thinkpad sshd[10325]: Received disconnect from 192.168.1.252 port 51467:11: Shutdown
Jan 24 14:46:18 thinkpad sshd[10317]: pam_unix(sshd:session): session closed for user worker9
Jan 24 14:46:18 thinkpad sshd[10324]: Disconnected from user worker9 192.168.1.252 port 51468
Jan 24 14:46:18 thinkpad sshd[10324]: Received disconnect from 192.168.1.252 port 51468:11: Shutdown
Jan 24 14:45:27 thinkpad sshd[10374]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:45:27 thinkpad sshd[10373]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:45:27 thinkpad sshd[10373]: Accepted password for worker9 from 192.168.1.252 port 51470 ssh2
Jan 24 14:45:26 thinkpad sshd[10374]: Accepted password for worker9 from 192.168.1.252 port 51469 ssh2
Jan 24 14:45:26 thinkpad sshd[10316]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:45:26 thinkpad sshd[10317]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:45:26 thinkpad sshd[10317]: Accepted password for worker9 from 192.168.1.252 port 51468 ssh2
Jan 24 14:45:26 thinkpad sshd[10316]: Accepted password for worker9 from 192.168.1.252 port 51467 ssh2
Jan 24 14:45:20 thinkpad sshd[10238]: Disconnected from user worker9 192.168.1.252 port 51465
Jan 24 14:45:20 thinkpad sshd[10238]: Received disconnect from 192.168.1.252 port 51465:11: Shutdown
Jan 24 14:43:35 thinkpad sshd[10229]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:43:35 thinkpad sshd[10230]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 24 14:43:35 thinkpad sshd[10229]: Accepted password for worker9 from 192.168.1.252 port 51465 ssh2
Jan 24 14:43:35 thinkpad sshd[10230]: Accepted password for worker9 from 192.168.1.252 port 51466 ssh2
4

Weird. I would have expected at least something to be logged. Is this over wifi or ethernet? Can you explain your configuration further?

5

It’s WiFi. I didn’t modify the sshd_config file. There’s just the thinkpad, the iPad, and a WiFi router. I’ve tried two different WiFi routers and get this problem with both. After reading your first response, I tried stress testing it by quickly pulling up a lot of documents, and it worked perfectly. I think when I go off and do something else for a while and come back and pull up more documents, that’s when the thinkpad’s network crashes.

1 Like
6

Oops, just listed sshd records from journalctl above. Here’s everything below, but I still don’t see any error messages for the network crash at 2:53 PM.

Jan 24 14:54:35 thinkpad NetworkManager[1450]: <info>  [1611521675.2316] device (enp0s25): state change: unavailable -> unmanaged (reason 'sleeping', sys-i>
Jan 24 14:54:35 thinkpad NetworkManager[1450]: <info>  [1611521675.2312] manager: disable requested (sleeping: no  enabled: yes)
Jan 24 14:52:15 thinkpad systemd-logind[1431]: Removed session 90.
Jan 24 14:52:15 thinkpad systemd-logind[1431]: Session 90 logged out. Waiting for processes to exit.
Jan 24 14:52:15 thinkpad sshd[9498]: pam_unix(sshd:session): session closed for user worker9
Jan 24 14:52:15 thinkpad systemd[1]: session-90.scope: Succeeded.
Jan 24 14:52:15 thinkpad audit[9498]: CRYPTO_KEY_USER pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=ser>
Jan 24 14:52:15 thinkpad audit[9498]: USER_LOGOUT pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe="/>
Jan 24 14:52:15 thinkpad audit[9498]: USER_END pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe="/usr>
Jan 24 14:52:15 thinkpad audit[9498]: CRED_DISP pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=p>
Jan 24 14:52:15 thinkpad audit[9498]: USER_END pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:session_close grant>
Jan 24 14:52:15 thinkpad audit[9498]: CRYPTO_KEY_USER pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=ses>
Jan 24 14:52:15 thinkpad audit[9498]: CRYPTO_KEY_USER pid=9498 uid=0 auid=1000 ses=90 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=ser>
Jan 24 14:48:09 thinkpad audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=fprintd comm="systemd>
Jan 24 14:48:09 thinkpad systemd[1]: fprintd.service: Succeeded.
Jan 24 14:47:47 thinkpad audit[10484]: USER_START pid=10484 uid=1000 auid=1000 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM>
Jan 24 14:47:47 thinkpad su[10484]: pam_unix(su-l:session): session opened for user root by (uid=1000)
Jan 24 14:47:47 thinkpad audit[10484]: CRED_ACQ pid=10484 uid=1000 auid=1000 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:s>
Jan 24 14:47:47 thinkpad su[10484]: (to root) worker9 on pts/0
Jan 24 14:47:47 thinkpad audit[10484]: USER_ACCT pid=10484 uid=1000 auid=1000 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:>
Jan 24 14:47:47 thinkpad audit[10484]: USER_AUTH pid=10484 uid=1000 auid=1000 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=PAM:>
Jan 24 14:47:38 thinkpad systemd[1]: Started Fingerprint Authentication Daemon.
Jan 24 14:47:38 thinkpad audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=fprintd comm="system>
Jan 24 14:47:38 thinkpad systemd[1]: Starting Fingerprint Authentication Daemon...
Jan 24 14:46:18 thinkpad systemd-logind[1431]: Removed session 116.
Jan 24 14:46:18 thinkpad systemd[1]: session-116.scope: Succeeded.
Jan 24 14:46:18 thinkpad systemd-logind[1431]: Session 116 logged out. Waiting for processes to exit.
Jan 24 14:46:18 thinkpad audit[10373]: CRYPTO_KEY_USER pid=10373 uid=0 auid=1000 ses=116 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=>
Jan 24 14:46:18 thinkpad audit[10373]: CRED_DISP pid=10373 uid=0 auid=1000 ses=116 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantor>
Jan 24 14:46:18 thinkpad audit[10373]: USER_END pid=10373 uid=0 auid=1000 ses=116 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:session_close gr>
Jan 24 14:46:18 thinkpad sshd[10373]: pam_unix(sshd:session): session closed for user worker9
7

It looks like a Wi-Fi-specific issue.
This kind of problem can be difficult to diagnose and solve.
If you are lucky, changing Wi-Fi band/channel or upgrading the router’s firmware can help.
In the worst case, you need to replace the router and/or the wireless adapter, or set up an extra repeater, or use Ethernet on the server side.
Anyway, be ready to spend a lot of time isolating the problem through trial and error method.

8

I’m surprised to not see anything logged, but I wonder if it’s related to power-saving features, with the wifi going to sleep and not waking properly.

1 Like
9

I was wrong about going off and coming back. The last two times I’ve produced the error were right after I booted up the thinkpad. Could be iPad power saving related, but I’m amazed it crashes the thinkpad’s network. Reminds me of the ping of death.

Before a network crash:

[root@thinkpad ~]# ethtool wlp3s0
Settings for wlp3s0:
Link detected: yes

[worker9@thinkpad ~]$ ping 192.168.1.254
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.
64 bytes from 192.168.1.254: icmp_seq=1 ttl=64 time=5.81 ms
64 bytes from 192.168.1.254: icmp_seq=2 ttl=64 time=3.15 ms
64 bytes from 192.168.1.254: icmp_seq=3 ttl=64 time=3.23 ms
64 bytes from 192.168.1.254: icmp_seq=4 ttl=64 time=5.72 ms
^C
— 192.168.1.254 ping statistics —
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 3.145/4.476/5.813/1.288 ms

[worker9@thinkpad ~]$ ifconfig wlp3s0
wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.77 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2600:1700:c4d0:b400::1b prefixlen 128 scopeid 0x0
inet6 2600:1700:c4d0:b400:73e1:9a1d:e85a:9f25 prefixlen 64 scopeid 0x0
inet6 fe80::2e35:de2c:f418:2279 prefixlen 64 scopeid 0x20
ether 00:1e:65:cb:37:44 txqueuelen 1000 (Ethernet)
RX packets 2484 bytes 264480 (258.2 KiB)
RX errors 0 dropped 821 overruns 0 frame 0
TX packets 112 bytes 15340 (14.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[worker9@thinkpad ~]$ iwconfig wlp3s0
wlp3s0 IEEE 802.11 ESSID:“GARRETT”
Mode:Managed Frequency:5.18 GHz Access Point: 06:93:97:39:F0:83
Bit Rate=6 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=62/70 Signal level=-48 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:75 Missed beacon:0

After a network crash:

[root@thinkpad ~]# ethtool wlp3s0
Settings for wlp3s0:
Link detected: yes

[worker9@thinkpad ~]$ ping 192.168.1.254
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.
From 192.168.1.77 icmp_seq=6 Destination Host Unreachable
From 192.168.1.77 icmp_seq=7 Destination Host Unreachable
From 192.168.1.77 icmp_seq=8 Destination Host Unreachable
From 192.168.1.77 icmp_seq=9 Destination Host Unreachable
From 192.168.1.77 icmp_seq=10 Destination Host Unreachable
From 192.168.1.77 icmp_seq=11 Destination Host Unreachable
^C
— 192.168.1.254 ping statistics —
13 packets transmitted, 0 received, +6 errors, 100% packet loss, time 12284ms
pipe 4

[worker9@thinkpad ~]$ ifconfig wlp3s0
wlp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.77 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2600:1700:c4d0:b400::1b prefixlen 128 scopeid 0x0
inet6 2600:1700:c4d0:b400:73e1:9a1d:e85a:9f25 prefixlen 64 scopeid 0x0
inet6 fe80::2e35:de2c:f418:2279 prefixlen 64 scopeid 0x20
ether 00:1e:65:cb:37:44 txqueuelen 1000 (Ethernet)
RX packets 5209 bytes 559399 (546.2 KiB)
RX errors 0 dropped 1711 overruns 0 frame 0
TX packets 331 bytes 137295 (134.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

[worker9@thinkpad ~]$ iwconfig wlp3s0
wlp3s0 IEEE 802.11 ESSID:“GARRETT”
Mode:Managed Frequency:5.18 GHz Access Point: 06:93:97:39:F0:83
Bit Rate=135 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=63/70 Signal level=-47 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:79 Missed beacon:0

10

Oh, I was thinking power saving issues on the ThinkPad. But I’m kind of just guessing without logs. So I think the next step would be to increase the log level. These docs are for RHEL 8 but should apply just as well to recent Fedora releases: Introduction to NetworkManager Debugging: Debugging levels and domains.

11

Many thanks. Will try that out.

12

Here’s a tests. Again, I only have this network trouble when I connect to it with my iPad. And instead of crashing the network, like I was thinking before, looks like it’s filling up some queues.

[worker9@thinkpad ~]$ ping -D 192.168.1.254 | while read row; do awk ‘{ sub(/[0-9]{10}/, strftime("%H:%M:%S", substr($0,2,10))) }1’ <<< “$row”; done
PING 192.168.1.254 (192.168.1.254) 56(84) bytes of data.
[10:14:17.341198] 64 bytes from 192.168.1.254: icmp_seq=53 ttl=64 time=34.8 ms
[10:14:18.313634] 64 bytes from 192.168.1.254: icmp_seq=54 ttl=64 time=5.70 ms
[10:14:19.316040] 64 bytes from 192.168.1.254: icmp_seq=55 ttl=64 time=7.11 ms
[10:14:20.315675] 64 bytes from 192.168.1.254: icmp_seq=56 ttl=64 time=5.77 ms
[10:14:28.472110] From 192.168.1.77 icmp_seq=61 Destination Host Unreachable
[10:14:28.472179] From 192.168.1.77 icmp_seq=62 Destination Host Unreachable
[10:14:28.472208] From 192.168.1.77 icmp_seq=63 Destination Host Unreachable
[10:14:31.543934] From 192.168.1.77 icmp_seq=64 Destination Host Unreachable
…I deleted a few records here…
[10:15:08.409223] From 192.168.1.77 icmp_seq=102 Destination Host Unreachable
[10:15:11.480104] From 192.168.1.77 icmp_seq=103 Destination Host Unreachable
[10:15:11.480169] From 192.168.1.77 icmp_seq=104 Destination Host Unreachable
[10:15:11.480197] From 192.168.1.77 icmp_seq=105 Destination Host Unreachable
[10:15:11.491708] 64 bytes from 192.168.1.254: icmp_seq=106 ttl=64 time=11.7 ms
[10:15:12.486826] 64 bytes from 192.168.1.254: icmp_seq=107 ttl=64 time=5.88 ms
[10:15:13.487822] 64 bytes from 192.168.1.254: icmp_seq=108 ttl=64 time=5.94 ms
[10:15:14.488871] 64 bytes from 192.168.1.254: icmp_seq=109 ttl=64 time=5.93 ms

[root@thinkpad ~]# journalctl -S “2021-01-27 10:14:18” -U “2021-01-27 10:15:14”
– Logs begin at Sun 2020-10-18 06:04:01 CDT, end at Wed 2021-01-27 10:23:17 CST. –
Jan 27 10:14:19 thinkpad audit[2373]: CRYPTO_KEY_USER pid=2373 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:14:19 thinkpad audit[2372]: CRYPTO_SESSION pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:19 thinkpad audit[2372]: CRYPTO_SESSION pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:19 thinkpad audit[2372]: USER_AUTH pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:auth>
Jan 27 10:14:19 thinkpad audit[2372]: USER_ACCT pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:acco>
Jan 27 10:14:19 thinkpad sshd[2372]: Accepted password for worker9 from 192.168.1.252 port 51655 ssh2
Jan 27 10:14:19 thinkpad audit[2372]: CRYPTO_KEY_USER pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:14:19 thinkpad audit[2372]: CRED_ACQ pid=2372 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:setcr>
Jan 27 10:14:19 thinkpad audit[2372]: USER_ROLE_CHANGE pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='pam: default-contex>
Jan 27 10:14:19 thinkpad systemd-logind[1222]: New session 5 of user worker9.
Jan 27 10:14:19 thinkpad systemd[1]: Started Session 5 of user worker9.
Jan 27 10:14:19 thinkpad sshd[2372]: pam_unix(sshd:session): session opened for user worker9 by (uid=0)
Jan 27 10:14:19 thinkpad audit[2372]: USER_START pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:session_open grant>
Jan 27 10:14:19 thinkpad audit[2376]: CRYPTO_KEY_USER pid=2376 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=serv>
Jan 27 10:14:19 thinkpad audit[2376]: CRED_ACQ pid=2376 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pam>
Jan 27 10:14:19 thinkpad audit[2372]: USER_LOGIN pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe="/us>
Jan 27 10:14:19 thinkpad audit[2372]: USER_START pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe="/us>
Jan 27 10:14:19 thinkpad audit[2372]: CRYPTO_KEY_USER pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=serv>
Jan 27 10:14:20 thinkpad audit[2404]: CRYPTO_KEY_USER pid=2404 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:14:20 thinkpad audit[2401]: CRYPTO_SESSION pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:20 thinkpad audit[2401]: CRYPTO_SESSION pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:20 thinkpad audit[2405]: CRYPTO_KEY_USER pid=2405 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:14:20 thinkpad audit[2406]: CRYPTO_KEY_USER pid=2406 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:14:20 thinkpad audit[2403]: CRYPTO_SESSION pid=2403 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:20 thinkpad audit[2403]: CRYPTO_SESSION pid=2403 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:20 thinkpad audit[2402]: CRYPTO_SESSION pid=2402 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:20 thinkpad audit[2402]: CRYPTO_SESSION pid=2402 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=sta>
Jan 27 10:14:41 thinkpad NetworkManager[1273]: [1611764081.1092] device[7570e4b15222c95a] (wlp3s0): wifi-scan: scanning requested but not allowed a>
Jan 27 10:14:41 thinkpad NetworkManager[1273]: [1611764081.1096] device[7570e4b15222c95a] (wlp3s0): wifi-scan: scheduled in 43 seconds (interval no>
Jan 27 10:14:47 thinkpad NetworkManager[1273]: [1611764087.1119] device[7570e4b15222c95a] (wlp3s0): wifi-ap: removed 44:94:FC:3F:E4:18 “NETGEAR96-5>
Jan 27 10:14:47 thinkpad NetworkManager[1273]: [1611764087.1138] device[7570e4b15222c95a] (wlp3s0): wifi-ap: removed 44:94:FC:3F:E4:19 “NETGEAR96” >
Jan 27 10:14:47 thinkpad NetworkManager[1273]: [1611764087.1190] device[7570e4b15222c95a] (wlp3s0): wifi-ap: removed 10:93:97:39:F0:80 “GARRETT” >
…I deleted a few records here…
Jan 27 10:14:47 thinkpad NetworkManager[1273]: [1611764087.1670] device[7570e4b15222c95a] (wlp3s0): wifi-ap: removed 48:DD:0C:18:C5:67 (none) >
Jan 27 10:14:47 thinkpad NetworkManager[1273]: [1611764087.1696] device[7570e4b15222c95a] (wlp3s0): wifi-ap: removed 48:DD:0C:18:C5:68 (none) >
Jan 27 10:14:48 thinkpad NetworkManager[1273]: [1611764088.1078] device[7570e4b15222c95a] (wlp3s0): APs: [now:288 last:35 next:324]
Jan 27 10:14:48 thinkpad NetworkManager[1273]: [1611764088.1079] device[7570e4b15222c95a] (wlp3s0): wifi-ap: dump 06:93:97:39:F0:83 “GARRETT” >
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: No space in command queue
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: Restarting adapter queue is full
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: Error sending SENSITIVITY_CMD: enqueue_hcmd failed: -28
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: Failing on timeout while stopping DMA channel 8 [0x05fe0001]
Jan 27 10:15:10 thinkpad kernel: ieee80211 phy0: Hardware restart was requested
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
Jan 27 10:15:10 thinkpad kernel: iwlwifi 0000:03:00.0: Radio type=0x1-0x2-0x0
Jan 27 10:15:11 thinkpad audit[2372]: USER_END pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe=”/usr/>
Jan 27 10:15:11 thinkpad audit[2372]: USER_LOGOUT pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login id=1000 exe="/u>
Jan 27 10:15:11 thinkpad sshd[2376]: Received disconnect from 192.168.1.252 port 51655:11: Shutdown
Jan 27 10:15:11 thinkpad audit[2372]: CRYPTO_KEY_USER pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=sess>
Jan 27 10:15:11 thinkpad audit[2372]: CRYPTO_KEY_USER pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=serv>
Jan 27 10:15:11 thinkpad audit[2372]: USER_END pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:session_close granto>
Jan 27 10:15:11 thinkpad audit[2372]: CRED_DISP pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=PAM:setcred grantors=pa>
Jan 27 10:15:11 thinkpad audit[2372]: CRYPTO_KEY_USER pid=2372 uid=0 auid=1000 ses=5 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=destroy kind=serv>
Jan 27 10:15:11 thinkpad systemd-logind[1222]: Session 5 logged out. Waiting for processes to exit.
Jan 27 10:15:11 thinkpad sshd[2376]: Disconnected from user worker9 192.168.1.252 port 51655
Jan 27 10:15:11 thinkpad systemd[1]: session-5.scope: Succeeded.
Jan 27 10:15:11 thinkpad sshd[2372]: pam_unix(sshd:session): session closed for user worker9
Jan 27 10:15:11 thinkpad systemd-logind[1222]: Removed session 5.
Jan 27 10:15:13 thinkpad sshd[2401]: Received disconnect from 192.168.1.252 port 51656:11: Shutdown [preauth]
Jan 27 10:15:13 thinkpad sshd[2401]: Disconnected from 192.168.1.252 port 51656 [preauth]
Jan 27 10:15:13 thinkpad audit[2401]: CRYPTO_KEY_USER pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:15:13 thinkpad audit[2401]: CRYPTO_KEY_USER pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:15:13 thinkpad audit[2401]: CRYPTO_KEY_USER pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=de>
Jan 27 10:15:13 thinkpad audit[2401]: USER_LOGIN pid=2401 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 msg='op=login a>

13

Disabling 802.11n on the thinkpad fixed it.

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14

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