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gary8588

Member

Registered: 2022-08-09

Posts: 24

Random connection drops on ethernet dongle

Hello,

Since about a week now my ethernet adapter seems to randomly drop connection once in a while. It could work for 6 hours then there could be 2 connection drops/freezes in a 30 minute window.

I got a Tuxedo InfinityBook S14 Gen6 and this USB Ethernet Adapter.
It worked flawlessly for over a year now.

How do I notice connection drops?

At some random point no DNS, no ping or any other type of connection works anymore.

For example nslookup just says that it could not reach any server:

$ nslookup services.home.services
;; connection timed out; no servers could be reached

Pinging another host on the network just times out as well:

$ ping 10.0.0.131
PING 10.0.0.131 (10.0.0.131) 56(84) bytes of data.
From 10.0.0.10 icmp_seq=1 Destination Host Unreachable
From 10.0.0.10 icmp_seq=2 Destination Host Unreachable
From 10.0.0.10 icmp_seq=3 Destination Host Unreachable
From 10.0.0.10 icmp_seq=4 Destination Host Unreachable
From 10.0.0.10 icmp_seq=5 Destination Host Unreachable
From 10.0.0.10 icmp_seq=6 Destination Host Unreachable
From 10.0.0.10 icmp_seq=12 Destination Host Unreachable
From 10.0.0.10 icmp_seq=15 Destination Host Unreachable
^C

And the other way around (ping from another host to my broken machine) will timeout as well.

Existing SSH connection just hang until eventually the typcal "broken pipe" message appears.

At the time of the broken state nothing is logged right after the broken state in

journalctl

However after a few minutes NetworkManager will print this:

Aug 09 21:22:07 ibs kernel: audit: type=1104 audit(1660072927.620:860): pid=61031 uid=1000 auid=1000 ses=2 msg='op=PAM:setcred grantors=pam_faillock,pam_permit,pam_faillock acct="root" exe="/usr/bin/sudo" hostname=? addr=? terminal=/dev/pts/6 res=success'
Aug 09 21:26:55 ibs pipewire-pulse[915]: mod.protocol-pulse: client 0x5586f21848c0: send channel:4294967295 20, error -32: Broken pipe
Aug 09 21:28:38 ibs key.dns_resolver[61238]: samba.home.services: No address associated with name
Aug 09 21:29:24 ibs pipewire-pulse[915]: mod.protocol-pulse: client 0x5586f21848c0: send channel:4294967295 83, error -32: Broken pipe
Aug 09 21:30:17 ibs dbus-daemon[829]: [session uid=1000 pid=829] Activating service name='org.freedesktop.thumbnails.Cache1' requested by ':1.21' (uid=1000 pid=939 comm="Thunar --sm-client-id 256b38108-ab5c-44ac-a45b-e32")
Aug 09 21:30:17 ibs tumblerd[61350]: Failed to load plugin "tumbler-poppler-thumbnailer.so": libpoppler-glib.so.8: cannot open shared object file: No such file or directory
Aug 09 21:30:17 ibs tumblerd[61350]: Failed to load plugin "tumbler-raw-thumbnailer.so": libopenrawgnome.so.9: cannot open shared object file: No such file or directory
Aug 09 21:30:17 ibs tumblerd[61350]: Failed to load plugin "tumbler-odf-thumbnailer.so": libgsf-1.so.114: cannot open shared object file: No such file or directory
Aug 09 21:30:17 ibs tumblerd[61350]: Failed to load plugin "tumbler-gepub-thumbnailer.so": libgepub-0.6.so.0: cannot open shared object file: No such file or directory
Aug 09 21:30:17 ibs tumblerd[61350]: Failed to load plugin "tumbler-ffmpeg-thumbnailer.so": libffmpegthumbnailer.so.4: cannot open shared object file: No such file or directory
Aug 09 21:30:17 ibs org.freedesktop.thumbnails.Cache1[61350]: Registered thumbnailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
Aug 09 21:30:17 ibs org.freedesktop.thumbnails.Cache1[61350]: Registered thumbnailer heif-thumbnailer -s %s %i %o
Aug 09 21:30:17 ibs org.freedesktop.thumbnails.Cache1[61350]: Registered thumbnailer /usr/bin/gdk-pixbuf-thumbnailer -s %s %u %o
Aug 09 21:30:17 ibs dbus-daemon[829]: [session uid=1000 pid=829] Successfully activated service 'org.freedesktop.thumbnails.Cache1'
Aug 09 21:30:35 ibs kernel: CIFS: VFS: \\samba.home.services has not responded in 180 seconds. Reconnecting...
Aug 09 21:30:44 ibs NetworkManager[503]: <info>  [1660073444.8736] manager: NetworkManager state is now CONNECTED_SITE
Aug 09 21:30:44 ibs dbus-daemon[499]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.2' (uid=0 pid=503 comm="/usr/bin/NetworkManager --no-daemon")
Aug 09 21:30:44 ibs systemd[1]: Starting Network Manager Script Dispatcher Service...
Aug 09 21:30:44 ibs dbus-daemon[499]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug 09 21:30:44 ibs systemd[1]: Started Network Manager Script Dispatcher Service.
Aug 09 21:30:44 ibs audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 09 21:30:44 ibs kernel: audit: type=1130 audit(1660073444.880:861): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 09 21:30:45 ibs key.dns_resolver[61387]: samba.home.services: No address associated with name
Aug 09 21:30:54 ibs systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
Aug 09 21:30:54 ibs audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 09 21:30:54 ibs kernel: audit: type=1131 audit(1660073454.920:862): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=NetworkManager-dispatcher comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Aug 09 21:31:04 ibs key.dns_resolver[61424]: samba.home.services: No address associated with name
Aug 09 21:31:22 ibs key.dns_resolver[61428]: samba.home.services: No address associated with name
Aug 09 21:31:40 ibs key.dns_resolver[61446]: samba.home.services: No address associated with name
Aug 09 21:31:59 ibs key.dns_resolver[61458]: samba.home.services: No address associated with name
Aug 09 21:32:17 ibs key.dns_resolver[61467]: samba.home.services: No address associated with name
Aug 09 21:32:35 ibs key.dns_resolver[61479]: samba.home.services: No address associated with name

At about 21:22 connection drop happened and at around 21:30 NetworkManager dispatcher startet its post-down scripts I suppose.
Apart from that no logs it seems.

What helps to workaround?

I tried a few different things. What definitely restores the connection is to disable and enable "Networking" from the status bar (I use XFCE).
Unplugging and replugging the ethernet dongle works as well.

I currently try to find out if it is just the ethernet adapter being broke already so I just use my WiFi adapter only and see if the problem still happens.

What does not work?

I tried systemctl restart NetworkManager and this did not resolve the issue.
I also tried disabling usb autosuspend for the ethernet adapter via device ID in TLP. Did not work as well unfortunately.

Anyone got another idea I could try?