Network problem after kernel update to 5.4.64

Hey team,

my network has a really strange behavior after kernel upgrade to 5.4.64. Tray icon has a ? no access to any page even with ip instead of the address.

  1. Ping via terminal is a success

2.ip route:
ip route
default via 192.168.1.1 dev enp3s0 proto dhcp metric 20100
default via 192.168.1.1 dev wlp5s0f3u2 proto dhcp metric 20600
default via 192.168.1.1 dev wlp2s0 proto dhcp metric 20601
192.168.1.0/24 dev enp3s0 proto kernel scope link src 192.168.1.5 metric 100
192.168.1.0/24 dev wlp5s0f3u2 proto kernel scope link src 192.168.1.2 metric 600
192.168.1.0/24 dev wlp2s0 proto kernel scope link src 192.168.1.4 metric 601

3.ip addr results:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether e4:54:e8:1c:5d:e9 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.5/24 brd 192.168.1.255 scope global dynamic noprefixroute enp3s0
       valid_lft 258331sec preferred_lft 258331sec
    inet6 2a02:2149:873e:d000:28f2:64af:bd48:8e34/64 scope global dynamic noprefixroute 
       valid_lft 86320sec preferred_lft 86320sec
    inet6 fe80::97da:bd61:93be:dfe3/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether b0:68:e6:28:28:bb brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.4/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp2s0
       valid_lft 258361sec preferred_lft 258361sec
    inet6 2a02:2149:873e:d000:43e7:ba2b:9e9e:b718/64 scope global dynamic noprefixroute 
       valid_lft 86320sec preferred_lft 86320sec
    inet6 fe80::c4e4:c3b1:4dd9:6be9/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
4: wlp5s0f3u2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether 50:3e:aa:27:40:bd brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.2/24 brd 192.168.1.255 scope global dynamic noprefixroute wlp5s0f3u2
       valid_lft 258334sec preferred_lft 258334sec
    inet6 2a02:2149:873e:d000:3bd:f037:60ce:1aa3/64 scope global dynamic noprefixroute 
       valid_lft 86320sec preferred_lft 86320sec
    inet6 fe80::2c13:2690:6c6c:d295/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

4.journalctl -b -u NetkorkManager.service
-- Logs begin at Sun 2020-05-03 23:11:40 EEST, end at Thu 2020-09-17 15:36:32 E>
-- No entries --

5.resolv_conf=/etc/resolv.conf
# If you run a local name server, you should uncomment the below line and
# configure your subscribers configuration files below.
#name_servers=127.0.0.1

What seems to resolve the problem is to run:
sudo systemctl start systemd-resolved

Turn off wired or wifi connection, turn on again and voila! Internet is back!

Any help suggestions? I really do not want to downgrade my kernel since graphics work better.

I guess the simplest solution is to enable systemd-resolved: sudo systemctl enable systemd-resolved so that it starts automatically.

That seems to do the trick alright…:wink:

This topic was automatically closed 3 days after the last reply. New replies are no longer allowed.