strange network behavior


2 posts
by Zerd » Thu Jun 28, 2012 3:43 pm
Hello,

I am experiencing a very odd behavior on my local network.
Here is my setup:

1. linksys 8 port gigabit switch connected with my rpi with a LAN cable length of about 12 meters.
2. a second d-link router where my pc is connected to in a different room with a cable length < 1 meter.

In this setup I get a connection every once in a while, but it's not stable.
When I connect an other device with the linksys switch I have no trouble connecting.
When I plugin the rpi in the dlink and connect my pc with the linksys switch it works without any trouble.

The rpi is connected via a 0.7A power cable. I thought this might be a problem, but that doesn't explain why it works on one switch, and not on the other. Could this have something to do with the cable length of the LAN cable?

Or are there any settings in the rpi i could tune to enhance the connectivity in the first setup?
Btw. this happens on Debian, Rasbmc and OpenELEC.

Thx in advance,
Zerd
Posts: 1
Joined: Thu Jun 28, 2012 3:23 pm
by beard5849 » Fri Jun 29, 2012 3:23 am
I have same problem, drove me mad!!!

Pi LAN connected to TP-Link WR1043ND running OpenWRT.

Pi gets an IP address, gateway and DNS, but all breaks from there, loosing IP address !!!!

"ifconfig" takes forever. "wget" won't get files, does DNS OK.
TP-Link is fine with my laptop. (TP-Link has 1G switch)

Pi connected to corporate LAN via 'old daggy' 1G switch, negotiates 100Mbit, all is OK.
Posts: 1
Joined: Fri Jun 29, 2012 3:14 am