Internet Connections

Questions about WIFI networks and devices
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mhwelsh
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Internet Connections

Post by mhwelsh »

When I run a machine with a live disk I usually find that I am unable to get internet connections. Even when the live disk indicates that the wireless modem is working.

I have two machines connected through an Edimax radio router to one another and the internet.
The system runs on selected ip addresses in order to be certain which machine is which.

Now one machine(A) can connect wirelessly to the other(B) but refuses to connect to the internet. The other machine(B) does connect to the internet.

Machine (B) can connect to machine(A).
The router's dhcp is disabled.

Can anybody suggest what might be wrong?

martin welsh
mhwelsh
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Re: Internet Connections

Post by mhwelsh »

Certainly when installing a system where the condition exists that the Gateway is accessible and the internet is not then a system restart enables internet access.
This does not help with a live systm or rescue disc.

martin welsh
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DrHu
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Re: Internet Connections

Post by DrHu »

Edimax has a web site to address technical support questions, have you tried them yet?
http://www.edimax.com/en/support_faq.php?pl1_id=1
http://www.edimax.com/en/support.php

Also, it seems that the Edimax wireless router would be using a WPS connection method (protocol), so you should be checking out that procedure under Linux
http://linuxwireless.org/en/developers/ ... WPS-client

General wireless networking under Linux (Ubuntu/Mint)..
https://help.ubuntu.com/community/WifiDocs/WiFiHowTo

http://www.linux.com/news/enterprise/ne ... -in-ubuntu
http://chxta.blogspot.com/2006/11/setti ... on-in.html
Last edited by DrHu on Wed Sep 07, 2011 10:22 am, edited 1 time in total.
AlbertP
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Re: Internet Connections

Post by AlbertP »

Could you please run this command in terminal on the machine where internet isn't working, and post the output?

Code: Select all

inxi -G
If the machine has both wired and wireless hardware, please tell which one you're using.
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mhwelsh
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Re: Internet Connections

Post by mhwelsh »

My apologies for the delay in replying.
The set up is computer1 = 192.168.2.4 (called windows.)
computer2 = 192.168.2.5 (called linux.)
Edimax radio router type AR-7048gA 192.168.2.1
My fixed ip 84.92.116.229 - no rude messages or spam please.

The system can said to run normally when set up, normally Computer1 on LinuxMint11 and computer2 on LMDEMint.
ping 192.168.2.5 - good
ping 192.168.2.1 - good
ping 84.92.116.229 - good
ftp 84.92.116.229 - good

Computer2 on LMDEMint and computer1 on LinuxMint11.
ping 192.168.2.4 - good
ping 192.168.2.1 - good
ping 84.92.116.229 - good
ftp 84.92.116.229 - good

AlbertP
martin@windows ~ $ inxi -G
Graphics: Card nVidia G72 [GeForce 7300 LE] X.Org 1.10.1 Res: 1280x1024@50.0hz
GLX Renderer GeForce 7300 LE/PCI/SSE2/3DNOW! GLX Version 2.1.2 NVIDIA 173.14.30.
This is the system running normally on a radio LAN.

Next

SystemRescue 2.2.0 CD on Computer2
wlan setup to its chosen ip 192.168.2.5
ping 192.168.2.4 - good
ping 192.168.2.1 - good
ping 84.92.116.229 unreachable.

inxi -G command not recognised.

Next;

LMDE 201108 DVD on Computer2
wlan setup 192.168.2.5
ping 192.168.2.4 - good
ping 192.168.2.1 - good
ping 84.92.116.229 unreachable

AlbertP
mint@mint ~ $ inxi -G
Graphics: Card nVidia C61 [GeForce 6100 nForce 405] X.Org 1.10.2.902 Res: 1680x1050@60.0hz
GLX Renderer Software Rasterizer GLX Version 2.1 Mesa 7.10.3
Are you sure that this is the command that you wanted?


It appears that everything is in working order but for some reason when the system is originated from a live disc any contact with the internet is barred.
I am sure that some of you have a live disc lying around - do you get the same trouble?

martin welsh
AlbertP
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Re: Internet Connections

Post by AlbertP »

Excuse me. Instead of the graphics info I wanted the networking card info from inxi -N.
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mhwelsh
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Re: Internet Connections

Post by mhwelsh »

AlbertP

Computer1 LinuxMint11
A working system.

martin@windows ~ $ inxi -N
Network: Card-1 Ralink corp. RT2561/RT61 802.11g PCI driver rt61pci
Card-2 nVidia MCP55 Ethernet driver forcedeth

Computer2

Mint LMDE 201108 Gnome Live disc. eth 0 connected to radio router.
ping 192.168.2.4 OK
ping 192.168.2.1 OK
No connection to network
mint@mint ~ $ inxi -N
Network: Card-1 Ralink corp. RT2561/RT61 802.11g PCI driver rt61pci
Card-2 nVidia MCP61 Ethernet driver forcedeth

Hope this helps.

martin welsh
AlbertP
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Re: Internet Connections

Post by AlbertP »

Your hardware seems OK, rt61pci isn't known to cause problems.

By the way, pinging your own public IP often does not work.

And it's true that there are only few distros that package inxi - that's why System Rescue couldn'tfind it.
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AlbertP
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Re: Internet Connections

Post by AlbertP »

Perhaps something is wrong in your router or modem configuration. Are you sure that the computer is allowed internet access?
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mhwelsh
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Re: Internet Connections

Post by mhwelsh »

Failure to connect to the internet is restricted to live disks.
Behaviour within the wlan is OK with live disks.
What is the difference?

I will try changing the modem.

martin welsh
AlbertP
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Re: Internet Connections

Post by AlbertP »

I don't think it's necessary. Make sure that the modem is not configured to block internet access for one of your machines.
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mhwelsh
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Re: Internet Connections (Solved)

Post by mhwelsh »

When working from a live disk your usual dns nameserver is out of the loop.

The solution is to add a dns nameserver address into /etc/resolv.conf.

In my case I used the dns server address supplied by the isp but I could have used the dns service supplied by the router.

My thanks to Klaus Knopper.

martin welsh
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