Lan eth problem Ubuntu Router

[otto7]

Hi!

I need an expert

My problem is that when I'm connected trough cable to my ubuntu server/router I get 0,1Mbit in up speed. (www.tptest.se) (speedtest.net)
But if I use wifi I get > 50Mbit.

The network on the ubuntu server eth2 and wlan0 is bridged (br0) and eth1 is the Internet.

What I have tried so far.

1. Another computer same issue
2. Connected direct to Internet >50Mbit up speed
3. Switched eth2 on server (hardware) 0,1Mbit up speed
4. Connected computer direct to eth on server = 0.1Mbit up speed
5. Tested speedtest.net on server >50Mbit up speed
6. Changed switch after eth2 same issue

I use shorewall as firewall maby somthing is wrong there? But the network is bridged (br0) so why is only cable not working but wifi is?

I have run the network script and here is the output http://paste.ubuntu.com/10660295/

[Tsepo_Joshua]

1. Disconnect from Internet
2. Open your Terminal and execute the line:
   sudo tee /proc/sys/net/ipv6/conf/all/disable_ipv6 <<<"1"
   
3. Connect to the Internet again, and see if the problem still exists.