Hello,
I am completely at a loss: On my notebook with current Kubuntu 22.04 WLAN and the Lan connection works, but I can't get on the Internet. Ping does not work, I suspect it has to do with DNS, but I can't get to my Fritzbox either. BTW: I have a Windows 11 dual boot, and there internet still works.
I have attached a few outputs below, but I can't find the problem.
I have not knowingly changed anything. But: Since the update from 21.10 to 22.04 nordvpn did not work for me, I was logged in but could not connect. So I wanted to see if a firewall (ufw) is running and blocking nordvpn, and I enabled ufw once and disabled it again. But what I can have broken by this I do not know ... After that the internet did not work anymore.
Help! Does anyone have an idea?
Greetings
Eriol
Code:bogislav@Messiah:~$ uname -a Linux Messiah 5.15.0-30-generic #31-Ubuntu SMP Thu May 5 10:00:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux bogislav@Messiah:~$ ifconfig -a eno1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.178.61 netmask 255.255.255.0 broadcast 192.168.178.255 ether 84:a9:3e:0e:fb:1d txqueuelen 1000 (Ethernet) RX packets 427 bytes 81788 (81.7 KB) RX errors 0 dropped 179 overruns 0 frame 0 TX packets 106 bytes 21103 (21.1 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 1000 (Lokale Schleife) RX packets 641 bytes 75310 (75.3 KB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 641 bytes 75310 (75.3 KB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 wlo1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 192.168.178.22 netmask 255.255.255.0 broadcast 192.168.178.255 inet6 fe80::f2ab:2a3c:f867:f437 prefixlen 64 scopeid 0x20<link> ether 80:2b:f9:73:c2:13 txqueuelen 1000 (Ethernet) RX packets 369 bytes 56387 (56.3 KB) RX errors 0 dropped 139 overruns 0 frame 0 TX packets 6 bytes 859 (859.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 bogislav@Messiah:~$ iwconfig lo no wireless extensions. eno1 no wireless extensions. wlo1 IEEE 802.11 ESSID:"Nemesis" Mode:Managed Frequency:5.18 GHz Access Point: 3C:A6:2F:86:65:53 Bit Rate=292.5 Mb/s Tx-Power=23 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:on Link Quality=47/70 Signal level=-63 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 bogislav@Messiah:~$ route -n Kernel-IP-Routentabelle Ziel Router Genmask Flags Metric Ref Use Iface 0.0.0.0 192.168.178.1 0.0.0.0 UG 100 0 0 eno1 0.0.0.0 192.168.178.1 0.0.0.0 UG 600 0 0 wlo1 169.254.0.0 0.0.0.0 255.255.0.0 U 1000 0 0 eno1 192.168.178.0 0.0.0.0 255.255.255.0 U 100 0 0 eno1 192.168.178.0 0.0.0.0 255.255.255.0 U 600 0 0 wlo1 bogislav@Messiah:~$ arp -av ? (192.168.178.30) auf 30:05:5c:5f:eb:7d [ether] auf eno1 _gateway (192.168.178.1) auf 2c:91:ab:5f:47:91 [ether] auf eno1 Einträge: 2 Ignoriert: 0 Gefunden: 2 bogislav@Messiah:~$ ip neigh show 192.168.178.30 dev eno1 lladdr 30:05:5c:5f:eb:7d STALE 192.168.178.1 dev eno1 lladdr 2c:91:ab:5f:47:91 STALE bogislav@Messiah:~$ ping -c 2 $(route -n | grep UG | awk {'print $2'}) PING 192.168.178.1 (192.168.178.1) 56(124) bytes of data. --- 192.168.178.1 ping statistics --- 2 packets transmitted, 0 received, 100% packet loss, time 1018ms bogislav@Messiah:~$ ping -c 2 www.spiegel.de ping: www.spiegel.de: Temporärer Fehler bei der Namensauflösung bogislav@Messiah:~$ rfkill list 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: hci0: Bluetooth Soft blocked: no Hard blocked: no bogislav@Messiah:~$ sudo iwlist scan lo Interface doesn't support scanning. eno1 Interface doesn't support scanning. wlo1 Scan completed : Cell 01 - Address: 2C:91:AB:5F:47:93 Channel:52 Frequency:5.26 GHz (Channel 52) Quality=44/70 Signal level=-66 dBm Encryption key:on ESSID:"Nemesis" Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=00000000898af039 Extra: Last beacon: 156ms ago IE: Unknown: 00074E656D65736973 IE: Unknown: 01088C129824B048606C IE: Unknown: 030134 IE: Unknown: 050400010000 IE: Unknown: 073C4445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E84011E88011E8C011E IE: Unknown: 200103 IE: Unknown: 0B050300090000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AEF0903FFFFFFFF00000000000000000100000000000000000000 IE: Unknown: 3D1634050400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CFA798B33AAFF0000AAFF0020 IE: Unknown: C005013A32FCFF IE: Unknown: C1060200FFD40000 IE: Unknown: C305032E2E2E2E IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD088CFDF00101020100 IE: Unknown: DD168CFDF0040000494C5103020972018C16000046000000 IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD0700037F05010001 IE: Unknown: DD1D0050F204104A0001101044000102103C0001031049000600372A000120 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD1F8CFDF00000010100000101000000000000FFFF2C91AB5F4793000000000000 Cell 02 - Address: 2E:91:AB:5F:47:93 Channel:52 Frequency:5.26 GHz (Channel 52) Quality=45/70 Signal level=-65 dBm Encryption key:on ESSID:"Nemesis Guest" Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=00000000898af039 Extra: Last beacon: 104ms ago IE: Unknown: 000D4E656D65736973204775657374 IE: Unknown: 01088C129824B048606C IE: Unknown: 030134 IE: Unknown: 050400010000 IE: Unknown: 073C4445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E84011E88011E8C011E IE: Unknown: 200103 IE: Unknown: 0B050000090000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AEF0903FFFFFFFF00000000000000000100000000000000000000 IE: Unknown: 3D1634050400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CFA798B33AAFF0000AAFF0020 IE: Unknown: C005013A32FCFF IE: Unknown: C1060000FFD40000 IE: Unknown: C305032E2E2E2E IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD088CFDF00101020100 IE: Unknown: DD168CFDF0040000494C5103020972018C16000046000000 IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD0700037F05010001 IE: Unknown: DD1D0050F204104A0001101044000102103C0001031049000600372A000120 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (2) : PSK unknown (8) Cell 03 - Address: 3C:A6:2F:86:65:52 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=56/70 Signal level=-54 dBm Encryption key:on ESSID:"Nemesis" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 9 Mb/s; 12 Mb/s; 18 Mb/s Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0000009dc6f94923 Extra: Last beacon: 16ms ago IE: Unknown: 00074E656D65736973 IE: Unknown: 010882848B968C129824 IE: Unknown: 030106 IE: Unknown: 0706444520010D14 IE: Unknown: 2A0100 IE: Unknown: 3204B048606C IE: Unknown: 0B050300120000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AAD0903FFFF000000000000000000000100000000000000000000 IE: Unknown: 3D1606000400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CB2598933FAFF0000FAFF0020 IE: Unknown: C005000000FCFF IE: Unknown: C1060100F2310000 IE: Unknown: DD1A00904C0408BF0CB2598933FAFF0000FAFF0020C005000000FCFF IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD168CFDF0040000494C51030209720100000000EF120000 IE: Unknown: DD6F0050F204104A0001101044000102103B00010310470010A1FE040AFBCF0622AE93862FA63C52651021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800020280103C0001031049000600372A000120 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD088CFDF00101020100 Cell 04 - Address: 2C:91:AB:5F:47:94 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=52/70 Signal level=-58 dBm Encryption key:on ESSID:"Nemesis" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 9 Mb/s; 12 Mb/s; 18 Mb/s Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0000000088a0d2d6 Extra: Last beacon: 16ms ago IE: Unknown: 00074E656D65736973 IE: Unknown: 010882848B968C129824 IE: Unknown: 030106 IE: Unknown: 0706444520010D14 IE: Unknown: 2A0100 IE: Unknown: 3204B048606C IE: Unknown: 0B050300160000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AAD0903FFFFFFFF00000000000000000100000000000000000000 IE: Unknown: 3D1606000400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CB2798B33AAFF0000AAFF0020 IE: Unknown: C005000000FCFF IE: Unknown: C1060200FEE20000 IE: Unknown: DD1A00904C0408BF0CB2798B33AAFF0000AAFF0020C005000000FCFF IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD168CFDF0040000494C5103020972018C16000046000000 IE: Unknown: DD6F0050F204104A0001101044000102103B00010310470010B18931F24734767547892C91AB5F47931021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800020280103C0001031049000600372A000120 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD1F8CFDF00000010100000101000000000000FFFF0000000000002C91AB5F4794 IE: Unknown: DD088CFDF00101020100 Cell 05 - Address: 3E:A6:2F:86:65:52 Channel:6 Frequency:2.437 GHz (Channel 6) Quality=60/70 Signal level=-50 dBm Encryption key:on ESSID:"Nemesis Guest" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s 9 Mb/s; 12 Mb/s; 18 Mb/s Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0000009dc6f8a20e Extra: Last beacon: 16ms ago IE: Unknown: 000D4E656D65736973204775657374 IE: Unknown: 010882848B968C129824 IE: Unknown: 030106 IE: Unknown: 0706444520010D14 IE: Unknown: 2A0100 IE: Unknown: 3204B048606C IE: Unknown: 0B050000120000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AAD0903FFFF000000000000000000000100000000000000000000 IE: Unknown: 3D1606000400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CB2598933FAFF0000FAFF0020 IE: Unknown: C005000000FCFF IE: Unknown: C1060000F2310000 IE: Unknown: DD1A00904C0408BF0CB2598933FAFF0000FAFF0020C005000000FCFF IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD168CFDF0040000494C51030209720100000000EF120000 IE: Unknown: DD6F0050F204104A0001101044000102103B000103104700109E82321DBC0C2F19378E6C4A41F079BF1021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800020280103C0001031049000600372A000120 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (2) : PSK unknown (8) IE: Unknown: DD088CFDF00101020100 Cell 06 - Address: 8C:85:80:A1:FB:D6 Channel:11 Frequency:2.462 GHz (Channel 11) Quality=22/70 Signal level=-88 dBm Encryption key:on ESSID:"" Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s 18 Mb/s; 36 Mb/s; 54 Mb/s Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s Mode:Master Extra:tsf=00000033ad56f1a1 Extra: Last beacon: 7640ms ago IE: Unknown: 0000 IE: Unknown: 010882848B961224486C IE: Unknown: 03010B IE: Unknown: 32040C183060 IE: Unknown: 0706444520010D14 IE: Unknown: 33082001020304050607 IE: Unknown: 33082105060708090A0B IE: Unknown: 050400010000 IE: WPA Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: 2A0104 IE: Unknown: 2D1A8C0117FFFF000000000000000000000000000000000000000000 IE: Unknown: 3D160B000400000000000000000000000000000000000000 IE: Unknown: 7F09010000000000000000 IE: Unknown: DD180050F20201010000022200002222000042225E0062222F00 IE: Unknown: 0B0503000F127A IE: Unknown: DD07000C4300000000 Cell 07 - Address: 3C:A6:2F:86:65:53 Channel:36 Frequency:5.18 GHz (Channel 36) Quality=49/70 Signal level=-61 dBm Encryption key:on ESSID:"Nemesis" Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0000009dc6eeab13 Extra: Last beacon: 16ms ago IE: Unknown: 00074E656D65736973 IE: Unknown: 01088C129824B048606C IE: Unknown: 030124 IE: Unknown: 073C4445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E84011E88011E8C011E IE: Unknown: 0B050300030000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AEF0903FFFF000000000000000000000100000000000000000000 IE: Unknown: 3D1624050400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CB2598933FAFF0000FAFF0020 IE: Unknown: C005012A00FCFF IE: Unknown: C106030000740000 IE: Unknown: C304022E2E2E IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD168CFDF0040000494C51030209720100000000EF120000 IE: Unknown: DD6F0050F204104A0001101044000102103B00010310470010A1FE040AFBCF0622AE93862FA63C52651021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800020280103C0001031049000600372A000120 IE: WPA Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : TKIP Authentication Suites (1) : PSK IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : TKIP Pairwise Ciphers (1) : CCMP Authentication Suites (1) : PSK IE: Unknown: DD088CFDF00101020100 Cell 08 - Address: 3E:A6:2F:86:65:53 Channel:36 Frequency:5.18 GHz (Channel 36) Quality=49/70 Signal level=-61 dBm Encryption key:on ESSID:"Nemesis Guest" Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s 36 Mb/s; 48 Mb/s; 54 Mb/s Mode:Master Extra:tsf=0000009dc6ede65a Extra: Last beacon: 16ms ago IE: Unknown: 000D4E656D65736973204775657374 IE: Unknown: 01088C129824B048606C IE: Unknown: 030124 IE: Unknown: 073C4445202401172801172C01173001173401173801173C011740011764011E68011E6C011E70011E74011E78011E7C011E80011E84011E88011E8C011E IE: Unknown: 0B050000030000 IE: Unknown: 460573D000000C IE: Unknown: 2D1AEF0903FFFF000000000000000000000100000000000000000000 IE: Unknown: 3D1624050400000000000000000000000000000000000000 IE: Unknown: 4A0E14000A002C01C800140005001900 IE: Unknown: 7F0805000F0000000040 IE: Unknown: BF0CB2598933FAFF0000FAFF0020 IE: Unknown: C005012A00FCFF IE: Unknown: C106000000740000 IE: Unknown: C304022E2E2E IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00 IE: Unknown: DD0900037F01010000FF7F IE: Unknown: DD0C00040E010102010000000000 IE: Unknown: DD168CFDF0040000494C51030209720100000000EF120000 IE: Unknown: DD6F0050F204104A0001101044000102103B000103104700109E82321DBC0C2F19378E6C4A41F079BF1021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800020280103C0001031049000600372A000120 IE: IEEE 802.11i/WPA2 Version 1 Group Cipher : CCMP Pairwise Ciphers (1) : CCMP Authentication Suites (2) : PSK unknown (8) IE: Unknown: DD088CFDF00101020100 bogislav@Messiah:~$ sudo systemctl status systemd-resolved ● systemd-resolved.service - Network Name Resolution Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled) Active: active (running) since Sat 2022-05-21 17:27:41 CEST; 15min ago Docs: man:systemd-resolved.service(8) man:org.freedesktop.resolve1(5) https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients Main PID: 934 (systemd-resolve) Status: "Processing requests..." Tasks: 1 (limit: 9213) Memory: 8.4M CPU: 9.585s CGroup: /system.slice/systemd-resolved.service └─934 /lib/systemd/systemd-resolved Mai 21 17:27:40 Messiah systemd-resolved[934]: Using system hostname 'Messiah'. Mai 21 17:27:41 Messiah systemd[1]: Started Network Name Resolution. Mai 21 17:27:45 Messiah systemd-resolved[934]: eno1: Bus client set search domain list to: fritz.box Mai 21 17:27:45 Messiah systemd-resolved[934]: eno1: Bus client set default route setting: yes Mai 21 17:27:45 Messiah systemd-resolved[934]: eno1: Bus client set DNS server list to: 192.168.178.1, fd00::2e91:abff:fe5f:4791 Mai 21 17:27:46 Messiah systemd-resolved[934]: Using degraded feature set UDP instead of UDP+EDNS0 for DNS server 192.168.178.1. Mai 21 17:28:02 Messiah systemd-resolved[934]: wlo1: Bus client set search domain list to: fritz.box Mai 21 17:28:02 Messiah systemd-resolved[934]: wlo1: Bus client set default route setting: yes Mai 21 17:28:02 Messiah systemd-resolved[934]: wlo1: Bus client set DNS server list to: 192.168.178.1 Mai 21 17:32:47 Messiah systemd-resolved[934]: Grace period over, resuming full feature set (UDP+EDNS0) for DNS server 192.168.178.1.
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