Ubuntu Networking :: Doesn't Encrypted WLAN Communication Work?
Jul 23, 2011
Why doesn't encrypted WLAN communication work for me? I've got an HP Probook 6555b with Ubuntu 11.04 32-bit. When I set my WLAN router to unencrypted I'm able to connect. But if I choose WPA-PSK-TKIP or WPA2-AES or WPA-PSK & WPA2-PSK I can't connect. Ubuntu prompts me to enter my encryption key. I enter it. It runs for a while and then prompts me again. The little icon at the top right of the screen next to the speaker symbol is where I can see it trying to connect.
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Feb 21, 2010
On my HP TX2500 laptop, dual-booting Vista and 9.04, Ubuntu installation found the WLAN and it works fine.I installed VirtualBox with Vista as the host and 9.04 as the guest. Wired Ethernet works fine but it didn't seem to find my WLAN. What more do I need to do?
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Feb 12, 2009
I installed F10 today. From live-usb wlan worked fine, but after installing it doesn't find any networks. I tried to google this problem, but everybody says wifi works out of the box. Not for me.
Solved: I disappled wireless networking and appled it again. It found all networks.
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Dec 7, 2009
I have installed Fedora 12 on my laptop.Installing my Broadcom BCM 4312 wireless drivers works just fine, but after a reboot I have to reinstall them. modprobe wl, modprobe wlan0 etc doesn't work either. I need to reinstall them every time I reboot.
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Sep 2, 2009
I have just updated KDENetwork to this level and now my F10 doesn't find any wifi connection. By the way, I have been working with F10 for some months without any problem on wlan.
iwconfig now says:
wlan0 IEEE 802.11bg ESSID:""
Mode:Managed Frequency:2.412 GHz Access Point: Not-Associated
Tx-Power=0 dBm
Retry min limit:7 RTS thr:off Fragment thr=2352 B
[code]...
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Feb 14, 2011
My net-book is working properly with Debian squeeze 2-6-32-5-686, only the wlan does not work. After typing lsusb I have got the message: lsusb : Bus 002 Device 002 : ID 160a:3184 VIA Technologies, Inc. VIA VNT-6656 [WiFi 802.11b/g USB Dongle]
So I obtained the driver package : VT6656_Linux_src_v1.19_12_x86. I followed the instructions ( make install... ) - but the result is only a lot of error messages. Mayby I am using the wrong driver package for the squeeze kernel - I don't know.
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Dec 11, 2010
recently I risked a look to the Linux world and I'm happy so far, but now I've got a Problem, I'm unable to solve by myself. I installed Mint (Julia) on my old Laptop to test Linux. The Laptop has a very old PCMCIA WLAN Card with a Realtek rtl8180 chipset. Everything seems to run perfectly so far with one exception: the WLAN doesn't find any Network to connect although the card and the driver seem to be installed correctly.
Here some code from the terminal:
Code:
lspci
00:00.0 Host bridge: ATI Technologies Inc RS200/RS200M AGP Bridge [IGP 340M] (rev 02)
00:01.0 PCI bridge: ATI Technologies Inc PCI Bridge [IGP 340M]
00:02.0 USB Controller: ALi Corporation USB 1.1 Controller (rev 03)
00:03.0 Modem: ALi Corporation M5457 AC'97 Modem Controller
[Code]...
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Jul 3, 2010
I have a Broadcom B4312(I believe) wireless card and installed the drivers for it, but under the Wireless tab in Network Connections, it doesn't show "wlan0" or anything similar to "eth0"(which it shows under "Wired"). I ran iwconfig and this is what I got:
[Code]....
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Jan 16, 2010
my network was a dream to set up under ubuntu 9.10. all i had to do was enter pass key, then that was it. Works brilliantly.
Different matter with studio. The thing I notice in network connections is, it doesn't want to retain my pass phrase, if I go back into properties the phrase is blank. As far as I can tell the wireless card has been reconcognized and is communicating with router.
My system is: asus p5ql-vm epu, intel core2 duo 2.8 e7400, 4gb 1067 ddr2 ram, belkin f5d7050 v4000, edimax router.
Here is the info requested in the sticky:
kevin@ubuntu:~$ lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 008 Device 003: ID 045e:00dd Microsoft Corp.
Bus 008 Device 002: ID 046d:c501 Logitech, Inc. Cordless Mouse Receiver
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
code....
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Mar 31, 2010
I just installed 9.10 on a brand new Dell Vostro 1520. The WLAN card does NOT work out of the box.
Here is what you have to do.
After install and rebooting insert the live CD
Go to software sources (system > software sources)and check the "officially supported restricted copyright" box
You are then asked to update the available software list, do so.
You will receive an error message since you are not (yet) connected to the internet and all the other repositories are not available.
Now you should be notified that restricted drivers are available, if not you can go to system > hardware. Anyway, now you should be able to activate the Broadcom STA driver. After rebooting you can connect to available wireless networks.
Alternative (in case you are not asked, which happened to me on another Vostro system) system>administration>syaptic package manager
Search for broadcom
Mark b43-fwcutter and bcmwl-kernel-sources for installation
Reboot (who said there is no rebooting required in linux)
The adapter should be up and running ...
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Jul 28, 2010
I have a Dell WLAN 1397 Half Minicard, 802.11 b/g card in my laptop, and I can't seem to get ubuntu to work with it. I tried this method:
1. Synaptic Pack Manager
2. Check "Install from Boot Disc"
3. Reload
4. Install and apply bcmwl-kernel-source
5. Reboot
This didn't work for me, so I tried entering sudo apt-get install bcmwl-kernel-source and that also didn't work. Another thing I tried is formatting my Ubuntu partition and reinstalling, and retrying both of those methods. The ethernet port does work, however.
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Mar 30, 2010
I have a dell 1521 and I can't get internet working, I thing the driver is no working with ubuntu 9.10
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Apr 23, 2009
I have this annoying problem since day one.I am testing out Red Hat RHEL5, everything is fine except DNS look up.If I ping www.google.com, it doesn't work, ping ip address it all works;if I bring up browser, put www.google.com it doesn't work, can't find the name, however, simply put ip address there it works.My DNS seeting seems ok, and the DNS works from Windows box.
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Jan 13, 2010
I have two ethernet card on my computer, I want to make a TCP or UDP communication between these two cards, so I disable loopback: #ifconfig lo down. but with out loopback I can't even ping an eth from another one. how should I do? I want traffic to really pass eth cards.
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Jan 21, 2010
Has anybody tried to get the USB server 'LANSER-E1' from 'MRT Communication' working in Linux ? It works OK in Windows but I have failed to get it working in Debian Sid.
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Oct 28, 2010
Code:
DMZ
Server--Router0--Modem0 ISP2--Modem3--Router3--Client3
/
Client1--Router1--Modem1--ISP1--WAN
/
Client2--Router2--Modem2 ISP3--Modem4--Router4--Client4
The Server in the above diagram can be accessed by Client3 and Client4 but not at all by Client1 or Client2. Router0 specifies the Server as a DMZ Host. I would be more specific but this is not my server. I don't use a DMZ, I forward ports when they are needed. In this case I represent ISP1 and the server belongs to a befuddled client. Client1 & Client2 can send packets to each other, no problem. Could the DMZ be breaking communication between the Server and Clients 1 & 2?
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Feb 27, 2010
i am using NCTUns simulator and having problem while receiving message from an OBU. sending a message works properly but recving creates problem and fails. i am using exactly the same function as used by the developers in the demos but still no luck. i copy the code attch the screen shots to have a look
sendto() and recvfrom() are used for message transfer. they both return >-1 if they are executed successfully. please have a look in the screenshots. agentClientReportStatus is the built in packet format which im using here whose fields i filled manually are in the code below.
agentClientReportStatus *message,*mssg;
int remainTime,n,n2,n3,i,sendingaddress,value;
sockaddr_in cli_addr;
timeval now;
[Code].....
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Feb 28, 2011
The communication between nagios and nrpe agent in the monitored host, can be without SSL? The problem is that I have 2 different versions of debian running on the machines and there are problems related to the libssl-dev package!
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Jun 9, 2010
I have recently installed ubuntu 10.04. After some days of trying I can say that ekiga doesn't work with 10.04. With the same computer I was perfectly able to use ekiga with ubuntu 8.1, the 10.04 gives me connections problems.... it simply say says "Could not register (Failed)".I'm trying to connect with my voip provider (12voip.com) but it seems that I can't. I have even tried other programs like empathy, Twinkle, QuteCom but with none of them I can connect with my voIP provider. I think there are some connection problems but I really don't know how to face them. We have to configure router in 10.04 for sip connection? Actually I can't phone at all.
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Jul 27, 2010
I've tried to use netcat in the past and assumed it was my stupidity that was preventing it from working... but this is getting ridiculous. I'll execute nc -l 3333 on a server at 192.168.0.105 (after opening it on the firewall of course) then I run nc 192.168.0.105 3333 on my laptop (from 192.168.0.101). and nothing happens... i start typing and nothing comes up on the terminal.
I run nc -z 192.168.0.105 80 which should ideally do a port scan of port 80 on that server (of which I'm running a web server that clearly works) but it doesnt even give me any feedback. Nothing happens. Now when I use the verbose flag i see that I am indeed connecting to the specified port on the server successfully (so the port scan one is a success but only with the verbose flag... which shouldnt be the case I believe). But still once I have the server listening and the laptop connected... I type in both windows and nothing happens...
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Aug 30, 2010
I have JVJ 3G modem,one from Singapore. I have try out as [URL]... But it doesn't work. Has anyone try it before?
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Aug 31, 2010
I am networked to a Windows machine. I can see and open files across the network. I can see and add my HP 6000 printer (it is on the Windows machine). On my Ubuntu machine this printer has a check mark by "Enabled" and "shared" but I cannot set it as default (that option is ghosted) and when I try to print a test page it says "unable to connect to CIFS host" I downloaded the HP Linux setup program. That program cannot locate the networked printer at all.
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Nov 15, 2010
I'm running Ubuntu 10.04 on my laptop. Up until about a week ago, my wireless worked fine, but now it rarely connects. Sometimes the connection indicator shows that I am connected, but when I click on it it doesn't show any active networks. Even when I use a wired connection it doesn't always work.
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Dec 22, 2010
i have had my bluetooth keyboard and mouse working fine for a little while now, then one day.. seemingly out of the blue (no pun intended) it stopped. heres what i deduced:
Mouse works fine, always keyboard doesnt.
I'm using a logitech dinovo edge
and i can manually force the keyboard to connect by putting the keyboard into discoverable mode (press the button on the back of it) and using hidd:
Code:
hidd --connect XX-XX-XX-XX-XX-XX
but who the heck wants to do that on every reboot or resume from sleep! yikes..
firstly, i noticed that bluetoothd was segfaulting alot:
Code:
ec 22 17:26:09 hostname kernel: [21329.811149] usb 2-6.2: new full speed USB device using ohci_hcd and address 6
[Code]....
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Jun 15, 2011
i've installed it on my parents old computer, mostly for downloading. But wired internet did work all the time but then i had to reset our router because of some problems and now it doesn't work anymore! But the strange thing is, if i put the cable on my own laptop with windows on it, then it works as normal.
So i guess its some kind of DNS problem, but i'm very new with ubuntu and also not so good with computers. Our network is simple just an modem connected to an router: Sitecome WL-341.
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Jan 15, 2010
I am new to linux terminal programming and all but i want to set up a simple serial communication from my desktop through USB port. The actual idea to to write some data in the terminal and build a terminal program that sends the data to the usb port with a fixed baud rate. are there ready made terminal programs available for this simple communication?or atleast any Graphical tools which could help me build and design such a terminal in ubuntu 9.04?
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Aug 25, 2009
Networking on Fedora 11 doesn't work for me on various machines. Fedora 10 does, but only if you don't do an update.Why does Fedora get worse the more you keep it up-to-date?
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Mar 21, 2011
Using tips provided in the "Sticky" posts, I have identified my wireless device -- BCM4322 -- and installed the necessary firmware and drivers. The device appears in Network Manager until system reboot, at which time the "ssd" driver module is loaded instead. After each boot I must execute the following commands to remove ssd and load the Broadcom driver:
rmmod ssb
modprobe lib80211
modprobe wl
The Broadcom README file provides directions to load the correct module automatically, but the commands appear to be incompatible with openSUSE 11.4. I'm happy to provide additional detail if needed
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Jul 17, 2010
I installed openSUSE 11.3 on my notebook (lenovo 510i, Intel Centrino Wireless-N 1000).When I connect to my home wlan with WPA2 there is no problem, but when I try to connect to an open WLAN without encryption, the essid is not set (seen with iwconfig wlan0). If I set it after rcnetwork start wlan0 with iwconfig wlan0 essid the_open_sid, it associates and dhcp is working fine.
Here are the messages that are produced during rcnetwork start wlan0:
Code:
Jul 16 13:51:48 job2 ifplugd(eth0)[4740]: ifplugd 0.28 initializing.
Jul 16 13:51:48 job2 kernel: [ 5819.161280] e1000e 0000:00:19.0: irq 30 for MSI/MSI-X
Jul 16 13:51:48 job2 ifup: eth0 device: Intel Corporation 82577LM Gigabit Network Connection (rev 06)
code....
Is there a log with the wireless card setup commands that are used?
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Jul 6, 2011
Being in China has some disadvantages reagardings internet.To enjoy unfiltered speed and access I use my non mainland mobile phone card.
Using LAN works fine in the office.But if I connect the WLAN USB dongle except skype nothing works.
ifconfig
eth1 Link encap:Ethernet Hardware Adresse 00:1A:A05:26:C5
inet Adresse:192.168.1.3 Bcast:192.168.1.255 Maske:255.255.255.0
inet6 Adresse: fe80::21a:a0ff:fed5:26c5/64 Gültigkeitsbereich:Verbindung
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
code....
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