Ubuntu Networking :: Can't Connect To One Particular Network On Laptop?
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
[code]....
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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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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)
[code]....
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Apr 1, 2009
Since I installed fedora on my desktop (there is no other OS on my desktop computer at the moment) I can't connect to my laptop which has Windows XP installed on it, although I can normally connect to internet from both computers. Here is the drawing to illustrate how everything is connected:
On the picture you can see that the phone line goes to the ADSL modem. The ADSL modem is connected to the Wireless modem with LAN cable. Wireless modem is connected to my desktop computer with LAN cable, and trough the wireless connection to the laptop. Internet is working fine for both computers, but desktop can't see laptop and vice versa. What do I need to do in order to see the laptop?
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Mar 10, 2011
i brought a new dell inspirion n4010 model..and i installed centos 5.5 but i cant connect to network..it showing like.
determining ip information for
etho...SIOCSIFADDR:no such device
etho:unknown interface:no such device
etho:unknown interface:no such device
failed.
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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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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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Aug 5, 2010
I'm at wits end...10.04 won't connect to a wireless network on my laptop, and that sort of makes it useless. What is the easiest way to revert back to 9.10? I have a dual-boot system with XP and I'd rather not have to start from scratch.
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Jun 22, 2010
I have fedora 13 installed in my laptop lenovo G450.
Inside the file networking-scripts I can find the ifcfg-wlan0.
But it can't find any SSID when I scan the network.
I tried operating manually also.
But it can't be connected to any network.
The wireless device is also powered on.
But I am not able to connect to the wireless network.
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Feb 23, 2009
This will allow you to use iphones' data plan as a wireless access point. Currently setup instructions are only posted for windows/mac using a helper app to configure the laptop. Here are the instructions I followed to setup iphonemodem2 to work under Fedora 10: Download iPhoneModem2 from a jailbroken iphone using Cydia. Create a new wireless network on Fedora with the following settings:
a) SSID = "iPhoneModem"
b) Mode = Ad-hoc
c) IPv4 Method = Automatic (DHCP)
Connect laptop and iphone to new wireless network. Start iphonemodem app on iphone. The "traffic" does not update; the "status" says "Wrong Wifi Network"; and the signal strength says 0%. However, the network connection should be there as long as you have a data signal to your service provider.
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Feb 16, 2010
I've been trying to understand how Linux creates the network/interfaces on a machine (been reading the Linux admin guide), but as I'm pretty new to this subject, I've got lost in the forest.
To provide with my goal:
1.) Learn about network setups on Linux
2.) Be able to maintain my own (virtual) network
3.) Configure my (virtual) network
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Aug 8, 2011
I can connect to the internet through wifi, but I cannot connect to anything on my network. I have a printer and a NAS, so I would really like for this to work again. I have a dell laptop with a Broadcom card.
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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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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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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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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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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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Jul 1, 2010
I recently fixed an annoying problem and I thought it would be nice to share my solution here. The problem was that after a cycle of suspend/resume, Network Manager would only auto-connect to the same network as it was previously connected to. So, for example, if I suspended my laptop at home, and then I went to school and resumed it, it would try to connect to the home network, and then just give up. It would not connect to the school network unless I explicitly told it to.irst, I'll describe the fix. If you're having this problem, you can this. Copy the following:
Code:
#!/bin/sh
case "$1" in
[code]....
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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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Jun 14, 2010
I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.
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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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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 10, 2010
I recently put Linux on a Thinkpad T40 I got. The wireless card works out of the box--I can see nearby networks. However, I can't connect to mine. network-manager would try (spin spin spin), fail, ask for the password, and then go back to the beginning and repeat indefinitely. This happened to me on a different computer, and on that one all I had to do was use wicd instead of network-manager. So I installed wicd, but it's not working either--it hangs at "Obtaining IP address".
I've found many, many threads with people who had the same problem, but none of their fixed worked for me.
I also tried to get wifi going manually, using this guide, but that didn't work.
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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
[code]....
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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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