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[Solved] - LAPTOP WiFi Good, but NO Ethernet. - Printable Version

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[Solved] - LAPTOP WiFi Good, but NO Ethernet. - kdemeoz - 2nd March 2017

Hi

Whilst i continue to struggle trying to fix my recalcitrant Tower [ https://forums.mauilinux.org/showthread.php?tid=24237&pid=41897#pid41897 ], i thought i'd look into a networking fault on my LAPPY.

Lappy has a good reliable fully-functional WiFi network service. In contrast, it has NO Ethernet connection at all. This has been a long-term fault [possibly the entire time i've used Maui on Lappy, but anyway for as long as i can now remember], but i've never bothered before to troubleshoot it, given i could still get online via WiFi. Back when Lappy still used Mint 17.3 KDE4, it did work.

It is not something trivial like a bad cable, as i have tried another, & also a different port on the modem-router. BTW i do know the modem-router's Ethernet itself does work, coz that's how Tower connects to the internet. Oh & also, the relevant Ethernet ports' LEDs on the modem-router do correctly come on & go off when i connect/disconnect the cable from Lappy.

When i click the SysTray's Networks' applet, it only shows all my WiFi & VPN connections. It does not even list Ethernet / Wired Connection.

Some details:
Code:
XPS-L501X:~$ ifconfig
enp9s0    Link encap:Ethernet  HWaddr f0:4d:a2:66:3c:ee  
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:3746 errors:0 dropped:6 overruns:0 frame:0
         TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:384921 (384.9 KB)  TX bytes:0 (0.0 B)

lo        Link encap:Local Loopback  
         inet addr:127.0.0.1  Mask:255.0.0.0
         UP LOOPBACK RUNNING  MTU:65536  Metric:1
         RX packets:5678 errors:0 dropped:0 overruns:0 frame:0
         TX packets:5678 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1
         RX bytes:491232 (491.2 KB)  TX bytes:491232 (491.2 KB)

tun0      Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
         inet addr:10.2.48.6  P-t-P:10.2.48.6  Mask:255.255.255.0
         UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
         RX packets:257937 errors:0 dropped:0 overruns:0 frame:0
         TX packets:149870 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:100
         RX bytes:329875280 (329.8 MB)  TX bytes:9128508 (9.1 MB)

wlp4s0    Link encap:Ethernet  HWaddr 00:24:d7:63:d8:f0  
         inet addr:192.168.1.103  Bcast:192.168.1.255  Mask:255.255.255.0
         inet6 addr: fe80::fcd0:25b0:c297:c353/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:279233 errors:0 dropped:0 overruns:0 frame:0
         TX packets:164460 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000
         RX bytes:366823008 (366.8 MB)  TX bytes:27958504 (27.9 MB)

Code:
XPS-L501X:~$ ethtool enp9s0
Settings for enp9s0:
       Supported ports: [ TP MII ]
       Supported link modes:   10baseT/Half 10baseT/Full
                               100baseT/Half 100baseT/Full
                               1000baseT/Half 1000baseT/Full
       Supported pause frame use: No
       Supports auto-negotiation: Yes
       Advertised link modes:  10baseT/Half 10baseT/Full
                               100baseT/Half 100baseT/Full
                               1000baseT/Half 1000baseT/Full
       Advertised pause frame use: Symmetric Receive-only
       Advertised auto-negotiation: Yes
       Link partner advertised link modes:  10baseT/Half 10baseT/Full
                                            100baseT/Half 100baseT/Full
       Link partner advertised pause frame use: No
       Link partner advertised auto-negotiation: Yes
       Speed: 100Mb/s
       Duplex: Full
       Port: MII
       PHYAD: 0
       Transceiver: internal
       Auto-negotiation: on
Cannot get wake-on-lan settings: Operation not permitted
       Current message level: 0x00000033 (51)
                              drv probe ifdown ifup
       Link detected: yes

Any ideas pls?

RE: LAPTOP WiFi Good, but NO Ethernet. - kdemeoz - 2nd March 2017

It's solved now, very easily. I simply had to create a new Ethernet connection in the SysTray's Networks' applet & supply the relevant details. Now it works just fine.

It probably doesn't really matter much anymore, but i do kinda wonder why Maui didn't do this automatically when i installed it on Lappy. Maybe i only had WiFi active back then during installation? Maybe i didn't also have the Ethernet cable connected then, hence Maui wouldn't have known about it. Hmmm, probably my fault... again.