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I have tried both raspbian stretch lite as well as desktop edition and ethernet does not work on this model. I have updated the firmware on the pi. All the software updates are installed. I have tested the cable, the switch as well as DHCP Server.

I tried plugging in a USB - Ethernet Dongle and it works fine with the same cable and switch. 

$uname -a
4.19.34-v7+ #1211 SMP Mon Apr 8 22:56:37 BST 2019 armv7l GNU/Linux

$ethtool -i eth0
driver: smsc95xx
version: 22-Aug-2005
firmware-version: smsc95xx USB 2.0 Ethernet
expansion-rom-version: 
bus-info: usb-3f980000.usb-1.1
supports-statistics: no
supports-test: no
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: no

$ ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 
     link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 
      inet 127.0.0.1/8 scope host lo 
         valid_lft forever preferred_lft forever 
      inet6 ::1/128 scope host 
         valid_lft forever preferred_lft forever 

2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 
     link/ether b8:27:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff

I have also tried updating the /boot/cmdline.txt and /etc/sysctl.conf as suggested on some sites, that didn't help either.

Additional Notes: The same pi used to work with older version of raspbian.

kksensei
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  • What is your network configuration? ip a – RalfFriedl Apr 19 '19 at 06:52
  • 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000 link/ether b8:27:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff – kksensei Apr 19 '19 at 06:56
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    You should add that information to the question. It is better visible and you can format it properly. The driver seems to think that your Ethernet cable is not connected. – RalfFriedl Apr 19 '19 at 08:20

2 Answers2

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I would suggest trying a previous version again, just to make sure. The versions can be found here: http://downloads.raspberrypi.org/raspbian/images/

Steve Amor
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You are using an experimental kernel and presumably firmware, probably from running rpi-update. There are outstanding issues with the 4.19 kernel.

"In normal circumstances there is NEVER a need to run rpi-update as it always gets you to the leading edge firmware and kernel and because that may be a testing version it could leave your RPi unbootable". https://www.raspberrypi.org/forums/viewtopic.php?p=916911#p916911 Even the rpi-update documentation now warns "Even on Raspbian you should only use this with a good reason. This gets you the latest bleeding edge kernel/firmware."

sudo apt-get update; sudo apt-get install --reinstall raspberrypi-bootloader raspberrypi-kernel will put it back to the latest supported kernel/bootcode.

Milliways
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  • Thanks! I did rpi-update just in an attempt to fix this issue. I did downgrade the bootloader and the kernel, but that didn't help either.

    $ uname -a Linux pi2 4.14.98-v7+ #1200 SMP Tue Feb 12 20:27:48 GMT 2019 armv7l GNU/Linux

     – kksensei Apr 20 '19 at 13:58