How to remove a damaged Wired Connection

[Ralf Mardorf]

On Sun, 28 Aug 2016 15:18:15 +0200, Chas IRONS wrote:
>My Settings/Network shows two Wired entries (because my ADSL service
>was poor so my ISP gave me a wireless router that works) but my browser
>will not connect if the router is switched on first.
>
>The lower Wired entry for the eth0 DSL router shows "Cable unplugged"
>because it was replaced by the eth1 wireless router.

Hi,

could it be, that you switched from PPPoE to DHCP, but you still
connect by cable and not by wifi? There was likely an issue with the
modem and not with ADSL, so the modem to dial up was replaced by the
router. The router likely provides LAN and WLAN.

However, wifi unlikely is eth1, it should be wlan0, wlan1 ... wlann.

What's the output of

  lsb_release -rc; ifconfig -a

?

I can't help you with Network Manager and also not really with wifi in
general, since I'm using a router by LAN, not by WLAN.

However, is your wifi thingy up?

If I connect a wifi thingy by USB, "ifconfig -a" shows it...



  $ ifconfig -a
  enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
          [snip]

  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          [snip]

  wlp0s19f3u1: flags=4098<BROADCAST,MULTICAST>  mtu 1500
          [snip]



...but it's not shown by ifconfig...



  $ ifconfig
  enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
          [snip]

  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          [snip]



It requires to bring the Interface up...



  $ sudo ip link set wlp0s19f3u1 up



...then its shown:



  $ ifconfig
  enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
          [snip]

  lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
          [snip]

  wlp0s19f3u1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
          [snip]



Regards,
Ralf