timstevens
Posts: 2
Joined: Thu Dec 26, 2013 3:32 pm

No network connection regardless of OS and other hardware

Thu Dec 26, 2013 4:01 pm

Hi,

My new Raspberry Pi cannot connect to the local network. (Other computers have no problem, neither when using a router, nor when using a switch; the Raspberry Pi works with neither; the network cable works fine with other devices.) When booting into NOOBS (1.3.2 as well as 1.3.3), the initializing dialogue box does not go away, but installing Rasbian is no problem (when using NOOBS Lite, I cannot do anything). Rasbian seems to be working fine except for the network connection. When I run "sudo ifup --force eth0," the following happens:
Listening on LPF/eth0/b8:…
Sending on LPF/eth0/b8:…
Sending on Socket/fallback
DHCPDISCOVER on eth0 255.255.255.255 port 67 interval 7
[then some other intervals]
No DHCPOFFERS received.
No working leases in persistent database – sleeping.
I have tried a numbers of solutions found when searching. I have not been able to find a similar problem (with the LAN connection) among Raspberry Pi owners. A problem with the networking equipment is not plausible as other computers have no problem with the equipment (including the network cable), regardless of the switch used.

I would be grateful for any help. I do of course hope the problem can be fixed, but if there is some way to determine if the Raspberry Pi is malfunctioning, I would like to know so that I can exchange it for a new as soon as possible.

User avatar
DougieLawson
Posts: 39825
Joined: Sun Jun 16, 2013 11:19 pm
Location: A small cave in deepest darkest Basingstoke, UK
Contact: Website Twitter

Re: No network connection regardless of OS and other hardwar

Sat Dec 28, 2013 8:57 pm

Try a different cat5 cable.
Check for green (& orange) lights on both ends.

Reboot your router.
Note: Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

Criticising any questions is banned on this forum.

Any DMs sent on Twitter will be answered next month.
All fake doctors are on my foes list.

timstevens
Posts: 2
Joined: Thu Dec 26, 2013 3:32 pm

Re: No network connection regardless of OS and other hardwar

Tue Dec 31, 2013 2:38 pm

Thanks, but I have tried all those things without success (other computers work flawlessly with the same router(s) and cable). When I connect my cable to a router, I get an orange light.

Is there at least something I can do to make sure my Raspberry Pi's network card is functional? (If I can know it is not, I would return the Pi for a new one as soon as possible.)

User avatar
DougieLawson
Posts: 39825
Joined: Sun Jun 16, 2013 11:19 pm
Location: A small cave in deepest darkest Basingstoke, UK
Contact: Website Twitter

Re: No network connection regardless of OS and other hardwar

Tue Dec 31, 2013 3:53 pm

Wire it to your laptop.
Windows will assign a 169.254.xxx.xxx address automagically.
We can assign an address to the RPi.
sudo ifconfig eth0 169.254.82.80
sudo ifconfig eth0 up

Then Windows should be able to ping it and PuTTY should connect to it.

If that doesn't work try a different cat5 patch cable.
Note: Any requirement to use a crystal ball or mind reading will result in me ignoring your question.

Criticising any questions is banned on this forum.

Any DMs sent on Twitter will be answered next month.
All fake doctors are on my foes list.

drgeoff
Posts: 11107
Joined: Wed Jan 25, 2012 6:39 pm

Re: No network connection regardless of OS and other hardwar

Tue Dec 31, 2013 6:07 pm

The only item not positively eliminated yet is the PSU.
Quis custodiet ipsos custodes?

Return to “Troubleshooting”