Is eth0 disabled by default on the new RPI 3B+? I have tried two now and cannot get eth0 working out of the box with a brand new raspbian install on the micro sd card. No problem with wi-fi but it is ethernet that I want. There is no trouble with ethernet cable or connection as it works fine on other machines but I get no lights on the ethernet socket and ifconfig shows:-
pi@raspberrypi:~ $ ifconfig
eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether b8:27:eb:57:83:8d txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 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 1 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Can anyone offer suggestions or am I ignorant or just stumbled on a bad batch of the new product?
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Joe Curtis
- Posts: 12
- Joined: Thu May 14, 2015 11:39 am
Re: eth0 on pi 3B+
No.
But the port is capable of connecting as a GigE one. Could the negotiation between your router and the RPi be failing and ending up with nothing?
Do you get any lights if you connect a cable directly between a 3B+ and other gear, eg a PC?
Quis custodiet ipsos custodes?
Re: eth0 on pi 3B+
It's only a hunch/guess, but is it possible that the network outlet you are connecting to is not capable of negotiating a connection with a Gigabit Ethernet equipped network interface?Can anyone offer suggestions
You have said:
...but are any of those other machines Gigabit-equipped?There is no trouble with ethernet cable or connection as it works fine on other machines
No doubt the theory is that all the links in the chain should be backwards compatible, but that's not to say that it will work in practice in all cases.
Edit: unintended overlap with DrGeoff's extended reply, but I am reluctant to waste what I have typed in....
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Joe Curtis
- Posts: 12
- Joined: Thu May 14, 2015 11:39 am
Re: eth0 on pi 3B+
Thank you, gentlemen, for your input which got me investigating further.
I have quite a complex local network set up including five pc's, three NAS units and (now ) five Pi's with a mixture of ethernet and wi-fi connections. They are linked, either through a HP ProCurve switch or directly, to a TalkTalk HG635 super router both of which are capable of gigabit performance.
To make best use of cat-5 cabling I use splitters on a couple of the cables so I can have two pc's or pi's using one cable to get to the switch. This has worked in the past with whatever computer, Pi or PC , uses the connection, even though some of them are gigabit devices.
Not so with the Pi 3B+'s. As soon as I removed the splitter, which happened to be where I was setting the Pi's up, and connected a 3B+ directly to the switch the ethernet connection became available.
I hope this information may be of use to anyone with a similar problem.
I have quite a complex local network set up including five pc's, three NAS units and (now ) five Pi's with a mixture of ethernet and wi-fi connections. They are linked, either through a HP ProCurve switch or directly, to a TalkTalk HG635 super router both of which are capable of gigabit performance.
To make best use of cat-5 cabling I use splitters on a couple of the cables so I can have two pc's or pi's using one cable to get to the switch. This has worked in the past with whatever computer, Pi or PC , uses the connection, even though some of them are gigabit devices.
Not so with the Pi 3B+'s. As soon as I removed the splitter, which happened to be where I was setting the Pi's up, and connected a 3B+ directly to the switch the ethernet connection became available.
I hope this information may be of use to anyone with a similar problem.