No internet on a Dell mini 9

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No internet on a Dell mini 9

Postby emdc on Mon Jun 15, 2009 9:20 pm

I just installed Linux Mint on a Dell mini 9 with 1GB RAM & a 32GB SSD. I connected to my wireless network but can't get on the Internet.

I checked for possible solutions here & thought I found an answer in Kirbyz's post but no go. Here's what I found in the Terminal:

iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

eth1 IEEE 802.11 Nickname:""
Access Point: Not-Associated
Link Quality:5 Signal level:199 Noise level:169
Rx invalid nwid:0 invalid crypt:0 invalid misc:0

pan0 no wireless extensions.

ifconfig
eth0 Link encap:Ethernet HWaddr 00:21:70:f3:de:e3
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:252

eth1 Link encap:Ethernet HWaddr 00:23:08:4f:91:bd
inet addr:10.42.43.1 Bcast:10.42.43.255 Mask:255.255.255.0
inet6 addr: fe80::223:8ff:fe4f:91bd/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:7937
TX packets:121 errors:27 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:24030 (24.0 KB)
Interrupt:17

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:739 errors:0 dropped:0 overruns:0 frame:0
TX packets:739 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:57563 (57.5 KB) TX bytes:57563 (57.5 KB)

lspci
00:00.0 Host bridge: Intel Corporation Mobile 945GME Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 3 (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
02:00.0 System peripheral: JMicron Technologies, Inc. SD/MMC Host Controller
02:00.2 SD Host controller: JMicron Technologies, Inc. Standard SD Host Controller
02:00.3 System peripheral: JMicron Technologies, Inc. MS Host Controller
03:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)

What do I do next? Thanks for any help!
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Re: No internet on a Dell mini 9

Postby terdon on Mon Jun 15, 2009 10:39 pm

Why are you sure you are connected? In the output of iwconfig for your wireless card (eth1) shows
Access Point: Not-Associated


That means you are not connected to a network. Have you tried connecting through the NetworkManager applet on the panel?

Everything else looks fine, your card appears recognised and configured.
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Re: No internet on a Dell mini 9

Postby emdc on Tue Jun 16, 2009 12:07 am

I say I'm connected because that's what the Wireless icon in the Task bar tells me.
It shows the connection is active @ 100%.

I've tried connecting every way possible that I can find. I've deleted & recreated the network. I've reset the router, rebooted the computer, etc.

I've read so many different posts regarding wireless networking that it's all starting to merge together. Perhaps this is a project for another day.
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Re: No internet on a Dell mini 9

Postby RedWagon on Tue Jun 16, 2009 12:30 am

eth1 IEEE 802.11 Nickname:""
Access Point: Not-Associated
Link Quality:5 Signal level:199 Noise level:169
Rx invalid nwid:0 invalid crypt:0 invalid misc:0

inet addr:10.42.43.1

That's an odd IP address for a home wireless router. You should be getting something like 192.168.x.x. What are you connecting to? Is this a business or school wide wireless connection?
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Re: No internet on a Dell mini 9

Postby terdon on Tue Jun 16, 2009 6:33 am

Well, your config seems fine so you should be able to connect... So, lets check your connection. Assuming your router has the default settings (see RedWagon's post) otherwise use the IP of your router, open a terminal and type:

Code: Select all
ping 192.168.1.1


Then:

Code: Select all
ping www.google.com


Then post the results here. It may simply be a problem of firefox or whatever, but it still looks to me like you are not actually connected whatever the NetworkManager may say.

Also, be aware that NetworkManager is kinda buggy. Although I have had no problems with the latest version (the one in gloria) I have had various issues with it in the past. You could try installing another wireless manager such as wicd or wlassistant (both in the repositories).
Last edited by terdon on Wed Jun 17, 2009 7:42 pm, edited 1 time in total.
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Re: No internet on a Dell mini 9

Postby emdc on Tue Jun 16, 2009 8:58 am

ping 192.168.1.1
Network is unreachable

ping http://www.google.com
unknown host http://www.google.com

This is a home network: Bellsouth DSL on a Westell Versalink 327W.
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Re: No internet on a Dell mini 9

Postby terdon on Tue Jun 16, 2009 9:49 am

Well, it looks like you are not connected to your network (again, assuming that 192.168.1.1 is your router's IP, if you could check that from another computer that would be great). try the following:

The best case scenario is that you are in fact connected but have not been assigned an IP address. Please post the output of:

Code: Select all
sudo dhclient


If that ends with a line like this (with different numbers) you should be able to surf the web with no problems:
bound to 192.168.1.101 -- renewal in 39598 seconds.


If not, try these steps:

Probably unnecessary but just in case:
Code: Select all
sudo ifconfig eth1 up



Check for available networks:
Code: Select all
iwlist eth1 scanning


You should see a list of available networks like this:
ath0 Scan completed :
Cell 01 - Address: XX:XX:XX:XX:XX:XX
ESSID:"Wireless Network Name"
Mode:Master
Frequency:2.462 GHz (Channel 11)
Quality=3/94 Signal level=-92 dBm Noise level=-95 dBm
Encryption key:off
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Extra:bcn_int=100


One of them should be yours. The easiest way to continue would be to turn off all security/encryption (WPA/WEP whatever) from your router then:
Code: Select all
sudo iwconfig eth1 essid MYACCESSPOINT


Then run dhclient again:
Code: Select all
sudo dhclient


Finally test it again by
Code: Select all
ping www.google.com


Post back here with the results, if it works we'll see how to automate it.
Last edited by terdon on Wed Jun 17, 2009 7:42 pm, edited 1 time in total.
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Re: No internet on a Dell mini 9

Postby emdc on Tue Jun 16, 2009 11:54 am

sudo dhclient
This got stuck in a loop looking for something that wasn't there.

sudo ifconfig eth1 up

iwlist eth1 scanning
This returned Interface doesn't support scanning

BTW, 192.168.1.33 is the IP address of my desktop Mac.
The router is 192.168.1.254
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Re: No internet on a Dell mini 9

Postby terdon on Tue Jun 16, 2009 12:14 pm

This got stuck in a loop looking for something that wasn't there.

What exactly?

dhclient is what allows you to use the DHCP server and get an IP address assigned automatically. Use your mac to log onto the router and check that DHCP is active, and see what the allowed range for DHCP addresses is. If it isn't running, activate it. Then try and assign an IP address (something outside the DHCP range) manually. You can do this graphically by right clicking network manager and choosing "Edit connections".

Just to make sure you really are connected to the router, please post the output of
Code: Select all
ping 192.168.1.254
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Re: No internet on a Dell mini 9

Postby AK Dave on Tue Jun 16, 2009 12:24 pm

Mint should have selected the wl kernel module for your Mini's wifi and it should be working immediately on install. No hassles. Assuming you don't have something funny happening with your router.

A few things for me to ask up front:
1. Before you installed Mint, your Mini came with either Ubuntu Hardy (lpia) or Windows. Did you toggle the radio off? From Hardy, did you use the aircraft-manager app to disable your wifi radio, or from Windows did you toggle the radio off? The BCM4312 has an internal firmware OFF switch that you may have toggled. Mint Gloria does not include the aircraft-manager to toggle this back on.
2. When you R-Click on nm-applet on the panel, is the checkbox CHECKED for wireless networking?
3. When you do "lspci -vvnn" and browse for your BCM4312, is the kernel module in use called "wl"?
4. Do you have an ethernet cable plugged into the Mini? Unplug it.

Based on this, I think your wifi is good, your card is enabled, you're using the right kernel module, and everything should work:
eth1 IEEE 802.11 Nickname:""
Access Point: Not-Associated
Link Quality:5 Signal level:199 Noise level:169
Rx invalid nwid:0 invalid crypt:0 invalid misc:0


The wl kernel module with the BCM4312 should configure the wifi as eth1, which is going to look odd to most of the Mint geeks here expecting wlan0 or something else. But eth1 is correct for a Mini-9. I think the whole problem is that you're simply not properly connected to your AP.

Go to nm-applet, R-click, edit your connections, and DELETE your wifi connection. Wait a few seconds, L-click on nm-applet, and reconnect to your AP. This reconnects as if for the first time.

What I don't understand is why your eth1 is identifying as addr:10.42.43.1 if your router is addr:192.168.1.254 and addr:192.168.1.33 is your desktop. Its like your wifi is connected to a different network entirely, not your own.
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Re: No internet on a Dell mini 9

Postby emdc on Tue Jun 16, 2009 1:07 pm

What is that EVIL thing that pops up on the desktop & removes the window you're working in?
More importantly, how do I disable it?

I find it extremely difficult to adjust settings on a computer when the dialog box disappears!
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Re: No internet on a Dell mini 9

Postby terdon on Tue Jun 16, 2009 1:17 pm

Ummm...? No idea. What thing exactly?
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Re: No internet on a Dell mini 9

Postby emdc on Tue Jun 16, 2009 1:37 pm

A rectangle with 4 sections appears in the center of the screen with arrows on each end. It looks to be some sort of easy navigational aid but without knowing what it is or how to use it, it's a GIANT pain.

I have no idea what makes it appear or how to control it.
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Re: No internet on a Dell mini 9

Postby AK Dave on Tue Jun 16, 2009 1:37 pm

I suspect you're accidentally hitting the hotkey or mouse shortcut for the desktop switcher, and that you have compiz enabled (which has a very easy shortcut to switch desktops).

Easy solution: disable compiz
Superior solution: remove compiz
Workaround that keeps compiz: use an external mouse, disable the touchpad

The Mini's touchpad is, by default, rather touchy. It is easy, especially if you're not used to it, to accidentally "swipe" and switch to the next desktop. Mint's default install is with compiz enabled, and two desktops, so thats likely what you're doing by accident.

Edit: Based on your new description, this is EXACTLY what you're doing. Disable compiz. Remove it, as you don't need/want it on a Mini.
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Re: No internet on a Dell mini 9

Postby dlkreations on Tue Jun 16, 2009 1:49 pm

[removed]

According to your laptop being connected to a 10.43.42.xx is a little odd, but not as odd as others think it to be. A 10.xx.xx.xx is still considered a private address, just not yours. Someone else in your neighborhood close by you set their network up by not following the normal I.P. octets. You are definitely connected to someone's network, just not yours. However if you follow Dave's advice, you should get it back working again. He is spot on when giving advice.

EDIT: Dang posted too late...
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Re: No internet on a Dell mini 9

Postby AK Dave on Wed Jun 17, 2009 6:11 pm

Please close your own ticket if this is resolved by amending the original post to prepend [SOLVED] to the subject line.
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