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I have a problem with my wired ethernet connection on a Dell Inspiron 5593 with Ubuntu 20.04. When I try to connect it keeps asking me for the password continuously. Wired connection work fine with windows operating system.

Running lspci

00:00.0 Host bridge: Intel Corporation Device 8a12 (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Iris Plus Graphics G7 (rev 07)
00:04.0 Signal processing controller: Intel Corporation Device 8a03 (rev 03)
00:14.0 USB controller: Intel Corporation Ice Lake-LP USB 3.1 xHCI Host Controller (rev 30)
00:14.2 RAM memory: Intel Corporation Device 34ef (rev 30)
00:15.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #0 (rev 30)
00:15.1 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2C Controller #1 (rev 30)
00:16.0 Communication controller: Intel Corporation Management Engine Interface (rev 30)
00:17.0 SATA controller: Intel Corporation Ice Lake-LP SATA Controller [AHCI mode] (rev 30)
00:19.0 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP Serial IO I2c Controller #4 (rev 30)
00:1d.0 PCI bridge: Intel Corporation Ice Lake-LP PCI Express Root Port #9 (rev 30)
00:1d.1 PCI bridge: Intel Corporation Device 34b1 (rev 30)
00:1d.4 PCI bridge: Intel Corporation Device 34b4 (rev 30)
00:1f.0 ISA bridge: Intel Corporation Ice Lake-LP LPC Controller (rev 30)
00:1f.3 Audio device: Intel Corporation Smart Sound Technology Audio Controller (rev 30)
00:1f.4 SMBus: Intel Corporation Ice Lake-LP SMBus Controller (rev 30)
00:1f.5 Serial bus controller [0c80]: Intel Corporation Ice Lake-LP SPI Controller (rev 30)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL810xE PCI Express Fast Ethernet controller (rev 07)
02:00.0 Network controller: Qualcomm Atheros QCA9377 802.11ac Wireless Network Adapter (rev 31)
03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809

Running ifconfig:

enp1s0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 98:e7:43:23:ee:98  txqueuelen 1000  (Ethernet)
        RX packets 428  bytes 88040 (88.0 KB)
        RX errors 0  dropped 124  overruns 0  frame 0
        TX packets 11  bytes 198 (198.0 B)
        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
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 11433  bytes 1017879 (1.0 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 11433  bytes 1017879 (1.0 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
wlp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.43.134  netmask 255.255.255.0  broadcast 192.168.43.255
        inet6 fe80::82e7:348:ff4f:ef24  prefixlen 64  scopeid 0x20<link>
        ether 40:23:43:c8:91:53  txqueuelen 1000  (Ethernet)
        RX packets 2689989  bytes 3915552343 (3.9 GB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1395506  bytes 130709369 (130.7 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

Running nmcli device:

*DEVICE          TYPE      STATE         CONNECTION   
wlp2s0          wifi      connected     Quick Hospot 
p2p-dev-wlp2s0  wifi-p2p  disconnected  --           
enp1s0          ethernet  unavailable   --           
lo              loopback  unmanaged     --

(when ethernet cable is plugged in, it shows "connecting" on enp1s0 state)

Running route:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         _gateway        0.0.0.0         UG    600    0        0 wlp2s0
link-local      0.0.0.0         255.255.0.0     U     1000   0        0 wlp2s0
192.168.43.0    0.0.0.0         255.255.255.0   U     600    0        0 wlp2s0

Running dmesg: https://pastebin.com/PG7yZdYw

I tried different solutions but nothing has worked.

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4
  • Password for a wired connection? Are you sure you're not connecting to some Wi-Fi instead? Commented Jul 19, 2020 at 8:45
  • Yes, I have password for this wired connection, idk why the provider did this. But this isn't the problem, I connect with the password on windows with no problem. Commented Jul 19, 2020 at 8:53
  • 1
    Are you using PPPoE? Commented Jul 19, 2020 at 9:01
  • 1
    What "it" keeps asking you for a password? Assuming it's not a web browser introducing some captive portal (reachable via WiFi possibly - you haven't posted ip a nor ip r results) - isn't the network 802.1x protected? Commented Jul 19, 2020 at 11:55

1 Answer 1

Reset to default
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I'm no expert, so this answer may not make sense: I had the same problem (Linux Mint 22.1) and spent days trying to find an answer, to no avail. Finally, in desperation, I opened the network settings, went to the 'Security' tab and disabled the 802.1x security option (so the connection was not secure). The connection then completed successfully. With the connection still up, I then re-opened the network settings and re-enabled the 802.1X security option, entered my user name and network password (the same as for the wifi connection). The connection stayed up and has worked fine ever since. I think there's a bug somewhere in Liux's network management, but I don't know enough about it to track it down. I can't explain why it worked either - sorry.

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  • As it’s currently written, your answer is unclear. Please edit to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers in the help center. Commented Jul 23 at 13:29
  • I gave my suggestion in good faith, and explained I was no expert, yet your idiot bot sends me a comment saying the answer is unclear. Your comment is unclear - no explanation what is wrong. This is typical idiot computer nerd crap. Last time I try to help. Commented Jul 25 at 16:01

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