Ubuntu Networking :: Laptop Will Not Connect To APs Using Channel 13?
Sep 22, 2010
I'm relatively new to Ubuntu, and have just installed 10.04 on a toshiba portege M100 laptop. Having got over the intel video chipset problems I tried to connect to my WLAN. Network manager would not connect. I tried switching to WPA, WEP and no encryption. No effect I still could not connect. I also noticed that network manager can find other APs much more quickly than mine.Haveing done some searching I tried removing network manager and installed wicd. Was good at finding the AP but reported it as operatingon channel 0. Still would not connect. I tried changing the AP channel to 6, suddenly everyting worked. I switched back to network manager (wicd got in a tangle over hidden networks). Still works.
Having scoured the web for help I found reference to 10.04 kernel suporting US channels. and that I should create a file /etc/modprobe.d/cfg80211, containing "options cfg80211 ieee80211_regdom=EU". I have tried this and it doesnt have any effect. I have noted that there are numerous variants of this advised by different people.Whilst at home I can operate my AP n a US channel, when I am on the move I cannot. I would like to get this working if at all possible.For info the wireless adaptor reported is:
*-network:1
description: Wireless interface
product: PRO/Wireless 2200BG [Calexico2] Network Connection
[code]....
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Feb 26, 2011
I just setup a new LAMP server (CentOS 5.5 x86_64) box with channel bonding on NetXtreme II BCM5709 Gigabit Ethernet (IBM x3650 M3). The problem is I wasn't able to connect to this server when I'm in different VLAN's. This server also unable to ping different VLAN's. But everything works fine when I transact in the same VLAN.Here's the config:
Datacenter VLAN = 9
Firewall = Disabled
SELinux = Disabled
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Jun 29, 2011
I'm trying to crack my wep password just for kicks, but I keep running into the same error. When I try to use airplay-ng for the packet injection, it always gives me the error " wlan0 is on channel -1, but the AP uses channel 6". I've tried setting wlan0 to channel 6 manually, but that doesn't help. I spent a while searching for a solution, but it seemed like each page had a different, usually highly complex solution, that still doesn't work. I have the most recent drivers for my wireless card, and it meets all the requirements. So, is there any solution to this that will actually work?
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Jun 12, 2010
My wireless (Toshiba laptop, 10.04 64 bit) is just hanging when trying to connect. It was working fine but now nothing. My Wireless antennae is on and my other laptop can connect with no problems. I have restarted the router and the laptop twice.
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Feb 6, 2010
I have a router with 2 IBM Thinkpads connected. One Thinkpad is running Ubuntu, and the other is running XP.
They connect to the router with no problems.
I installed Ubuntu on a Sharp Moebius laptop and plugged in the network cable.
NOTHING.
I have tried pinging the laptop; nothing.
I am not sure where the problem is, because my Thinkpads have no problems connecting to the router, with both Ubuntu and XP
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Mar 19, 2010
I run Ubuntu 9.04 on a Toshiba NB205. I am suddenly having trouble connecting to the internet using my router or my cable modem for that matter. The weird thing is that I can:(1) connect to other networks just fine, and(2) my router/internet connection work fine when plugged into my desktop.I can't connect whether I'm plugged in with the ethernet cable directly from my modem or from my router, although both work fine when plugged into my desktop. Basically two green lights show up on networkmanager but it doesn't go from there to connecting.So the usual troubleshooting of moving the wires around and trying to connect like that just suggested that my laptop doesn't connect on the one router/internet connection that I happen to need.
sudo ifconfig
gives:
eth0 Link encap:Ethernet HWaddr xxxxxxxxx
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Aug 10, 2010
I have finally gotten my courage up and decided to take the plunge into Linux. I bought a used HP Pavilion zt1135 laptop, and loaded Ubuntu 10.04. The laptop has no other operating system on it. Everything seems to work fine except it won't connect to the internet. I am using a Comcast cable modem, which uses DHCP and a wired connection. It works fine on my XP computer, but on the Ubuntu laptop it claims there is no network connected. Firefox gives a message something like "No server found".
I have tried recycling the power to the modem and then booting up the laptop. I have tried unchecking "Enable Networking" and then re-checking it. I have checked the ethernet cable on another machine and found it OK. Is it possible Ubuntu does not have drivers for this laptop's ethernet connection, or that the laptop is defective?
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May 15, 2011
Sorry if this is already posted, but I wasnt sure the right keywords to use the search feature... I am somewhat familiar with older Ubuntu, but recently got 11.04 and installed it on my girlfriends laptop and during installation when it was scanning for the DHCP or whatever it says it failed to find it or something or other and it gave options to do it manually or to do it later so I chose to do it later and after booting into the OS I can not do anything via the internet, not even updates. I have tried looking at the network connections and the only thing there is a wired connection. This laptop accesses the internet through a desktop with Cox cable internet and a wireless router...
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Jun 25, 2011
PC seems to run fine in single channel mode but monitor reports no input in dual channel mode and memtest86+ lists from 1-3 errors per pass in single channel mode. Motherboard (Gigabyte P43T-ES3G) can't be set for the 1.65 volts required by the RAM (2x2 of OCZ3P1333LV4GK PC3 10666). The mobo voltage choices are 1.6 or 1.7 volts. I have tried both and increased the MCH voltage from 1.1 v to 1.2 v, but so far can't get it to run in dual channel mode at all and single channel mode seems to run fine but I still get errors in memtest86+. Also tried optimized Bios settings and loosened memory timings (from 7-7-7-16 to 8-8-8-27 and tRFC 60 to 70) and reset Command Rate from 0 to 2. CPU is Core 2 Quad @ 2.4 Ghz, PSU is rated at 400 watts, Video card is Gigabyte GT220.
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Jan 16, 2010
That is what I do to connect to Xbox Live and I just got an Insignia Blu-ray player that can only connect to BD-Live through an Ethernet connection, so I was wondering if I could apply that same concept to my Blu-ray player.
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Feb 27, 2010
I just purchased a firewire cable but I have no clue how to use it. I'm trying to connect my desktop and laptop via the firewire.
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Mar 12, 2010
I've not changed my configuration, but after temporarily unplugging my laptop from the router, I can no longer persuade it to connect again.Have restarted it repeatedly, but to no avail.A similar problem has been occurring with my Huawei 3G Dongle which has suddenly started behaving.Are there any troubleshooting guides for the Network Manager's wired connections? Don't know where to start.
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Aug 8, 2010
I just installed Ubuntu 10.04 on my mac G4 (PPC) and it does not connect to wireless with my wireless card (drivers maybe) I am a complete newbie with any linux operating system (I've tried SLAX but never kept with it) So is there anyway i can use my laptop with Windows XP to cennect to the wireless on my G4 using an Ethernet cord?
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May 2, 2011
I did a clean install of Ubuntu 11.04 from a cd over windows and Ubuntu 10.04. The hardwire internet works but not the wireless.
compaq presario m2010us Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 03)
~$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
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Sep 1, 2011
I want to connect my phone and laptop through wi-fi. Both my laptop and phone are wi-fi enabled devices. My laptop has ubuntu 10.10 running.
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May 3, 2011
With most Linux distributions, I can only get a short range to connect my laptop to the wifi. However, when using Ubuntu 10.10, this issue seemed to cure itself and I was able to use wifi in my room. I recently installed Ubuntu 11.04, but suddenly my wifi issues have come back again - I can only connect if I am near my router.
I am using an Intel Wifi 5100. I should also note I can get a wifi connection if I boot into Windows 7.
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Apr 3, 2009
need to connect My System-ubuntu with Laptop-Fedora 10 LAN. Can I connect directly with c-cable Laptop to System?How to set that this 2 see each other?
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Mar 19, 2010
Can anyone provide me the details how to connect my laptop with centos5.3 to connect to a wireless network.
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Feb 3, 2009
I have two computers. The first computer has windows xp in it and is a member of the local lan with ip address 192.168.11.21. The second is my laptop having ubuntu 8.10.Both these computers are connected to each other via the broadband router which assigns ips 192.168.1.3 to my laptop and 192.168.1.1 to my desktop. I am able to browse the lan of 192.168.11.x via the desktop and I want the same possible on my laptop whose only connection is through the router to the desktop. Is there any way I can do it?
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Jul 14, 2011
Thinking about building a new system, with 4GB of DDR3 RAM. I am just wondering, which would you prefer: Dual-channel DDR3 or Quad-channel DDR3? Does one have better speed performance over another? Will one way keep your system cooler?
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Mar 29, 2010
I have ASUS Laptop A6Rseries was running XP untill I installed Linux 9.10. Now i am having problem connecting to my wireless network. I am using Belkin router what works fine with XP, Vista and Windovs 7. Here is some information what I found
lspci
00:00.0 Host bridge: ATI Technologies Inc Device 5a31 (rev 01)
00:01.0 PCI bridge: ATI Technologies Inc RS480 PCI Bridge
00:13.0 USB Controller: ATI Technologies Inc IXP SB400 USB Host Controller (rev 80)
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May 28, 2010
I'm trying to install Ubuntu 10.04 on my Toshiba A200-12U laptop (with an Atheros AR5007EG wireless card), but networking is being problematic.I entered Network Configurations and tried to get 'Auto eth0' working -- I went to Edit > IPv4 settings and filled in 'Addresses' with the details of my connection:
Address: 192.168.1.254 (the local IP of my router)
Netmask: 255.255.252.0
Gateway: 94.195.208.1
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Nov 4, 2010
I have problem with laptop installed Ubuntu OS. Laptop can't connect Internet when open again after standby Mod. It can't receive issued IP from Router.
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Jan 11, 2011
I have an old desktop computer that I installed Ubuntu 10.04 on. I also have a laptop with Windows 7 Pro which is connected wirelessly to the internet. The desktop does not have a wireless card and the modem is in another room. I have a spare ethernet cable, is it possible to connect the Ubuntu desktop to the internet by connecting it to the laptop with the cable? I'm not very good with computers.If this isn't possible, how would I go about connecting the desktop to the internet?
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Jan 15, 2011
I'm not exactly sure if this should be here and not in the Hardware & Laptops section, but seeing as my only problem is with WiFi, I'm guessing this is the right place. Under Ubuntu, my laptop (an Asus K42Ja, more details below) can see wireless networks normally. However, when I attempt to connect, it fails to establish a connection. Under Windows on the same laptop (dual boot), no problems are experienced.
According to this, there's a firmware bug in my wireless chip which causes connections to get dropped. I'm not getting connections at all, but I still tried the workarounds on that page with no luck. The router is a TP-Link TL-WR340G. My previous laptop, a really old one from 2003 running Ubuntu 9.10 was able to connect to that router without problems. The wireless card was Intel on that as well (but, of course, much older). The router is set up to use WPA for security. I didn't use WPA2 as I read something a while ago about problems with WPA2 and some Linux distros. Please correct me if I'm wrong here.
If anyone's curious, I'm posting this on Ubuntu, via an ethernet cable to the router mentioned earlier. Some tasty technical bits: dmesg (the latter half of the "timed out" messages is me retrying after double-checking the WPA key)
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Jun 1, 2011
After upgrading from 10.10 to 11.04 and running an update ubuntu can't connect to any wifi networks, although it can see them perfectly (and potentially unrelated, the windows partition is having major dns issues with the wifi too).
I've looked around and can't find an obvious fix, just a bunch of posts from people with the same problem that wasn't solved. I got frustrated and was about to install 10.10 again but I noticed I couldn't connect to the wifi on the liveCD either. I then tried the 10.04 liveCD, and the internet worked aswell as when I installed it. However before when I upgraded from 10.04 to 10.10 I had no problems with the wifi, so it leads me to suspect that there was something installed/some setting in 10.04 that is missing from the latter version.
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Jan 6, 2010
hakan@hakan-desktop:~$ smbtree
WORKGROUP
HAKAN-LAPTOP hakan-laptop server (Samba, Ubuntu)
cli_start_connection: failed to connect to HAKAN-LAPTOP<20> (0.0.0.0). Error NT_STATUS_BAD_NETWORK_NAME
[code]....
one hour later. dont change anything.
hakan@hakan-desktop:~$ smbtree
WORKGROUP
HAKAN-DESKTOP hakan-desktop server (Samba, Ubuntu)
HAKAN-DESKTOPdeluge
[code]....
what can i do?
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Nov 12, 2010
I am a beginner to ubuntu. I have installed ubuntu 10.04 on my laptop using wubi.When I am trying to edit the IP address using network editor,apply button is not highlighted.I managed to give IP as well as netmask through command prompt.But I am not able to give gateway and dns IP.Please help me configuring this.
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Dec 10, 2010
My laptop has been working fine with ubuntu 10.04, and earlier today it shut down after running out of battery. I came to use itr and discovered that the wifi icon had disappeared from the panel bar, and it won't connect to the wireless networkor via a wired connection.I have had a play around with this, tried ping -c5 google.comresult was:ping: unknown host google.comand ping -c5 4.2.2.1result: onnect:etwork is unreachable.I have other computers connecting to this network and know that it is working fine.
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Feb 21, 2011
i have 3 comps(running ubuntu 10.04) and a laptop(running vista sp2). i have installed samba on all ubuntu comps. i have a printer attached to one of the comps and it has been shared also the internet connection on that comp has been shared. all the computers are connected using lan cables through an ethernet switch. i also have a wireless router which is connected to the ethernet switch.
I am able to view all the comps on the network except the laptop running vista. all the desktops are visible on the network and are able to print and share files on the network and also connect to the internet.the laptop running vista can connect to the internet but its not visible on the network and nor can it share files across the network or access the printer.all the systems have a static ip.
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