[SOLVED] NetworkManager Applet does not show available eth0

lattimro · 11-06-2023, 11:59 AM

Hi Folks,

NetworkManager Applet v. 1.32 from XFCE4 4.18 does not see the Ethernet interface: No network connection

ipconfig eth0 shows:

Code:

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:26:6c:3e:7f:38 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.3/24 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::226:6cff:fe3e:7f38/64 scope link 
       valid_lft forever preferred_lft forever

and

Code:

nmcli d
DEVICE  TYPE      STATE                   CONNECTION 
lo      loopback  connected (externally)  lo         
wlan0   wifi      unavailable             --         
eth0    ethernet  unmanaged               --

I tried to change the managed to true

Code:

nmcli d set eth0 managed yes

and still shows "unmanaged"

I created a New Connection Type (Ethernet) in NetworkManager Applet OK but still does not shows as available.
I reinstalled the applet but no changes.

Code:

inxi -n
Network:
  Device-1: Realtek RTL810xE PCI Express Fast Ethernet driver: r8169
  IF: eth0 state: up speed: 100 Mbps duplex: full mac: 00:26:6c:3e:7f:38
  Device-2: Realtek RTL8191SEvB Wireless LAN driver: rtl8192se
  IF: wlan0 state: down mac: 56:a6:16:67:04:f8

UPDATE:
Somehow eth0 is available now.

Code:

[ifupdown]
managed=false

added in NetworkManager
Now NM shows 2 available interfaces: eth0 and ifupdown. I can connect to both. Also:

Code:

nmcli d
DEVICE  TYPE      STATE                   CONNECTION 
eth0    ethernet  connected               eth0       
lo      loopback  connected (externally)  lo         
wlan0   wifi      unavailable

Thanks!

yvesjv · 11-11-2023, 09:38 PM

Disable network-manager and connect via cli has always worked for me at work & home.
Only re-enable network-manager when traveling and staying at hotels with wifi, etc.