Ubuntu Networking :: Wireless Connection Not Working After Disconnect It
Jan 9, 2010
I have a cisco linksys wireless adapter (WUSB600n) which, most of the time, great when booting up. But mostly after some time (1min- 1hr.) it disconnects. When checking the status I can see some of the networks around me, including mine. But selecting it doesn't do anything. I searched the forums and tried:
sudo /etc/init.d/networking restart
But still no connection; the only thing that helps is rebooting.
I recently installed Ubuntu 10.04 on my Acer TravelMate 3270 notebook (with Windows 7 dual boot) for everyday use. All is great except i started to notice my Wireless Network get disconnected and then reconnects every 5 minutes or so. Also the NetworkManager Applet 0.8 keep annoying me with the notifications that its disconnected and then reconnected.
I do not have this issue while using Windows 7 (in the same area). Can this be fixed. As i really want to move my day to day computing need to Ubuntu.
Since I upgrade to Ubuntu 10.04 my wireless connection is very unstable. I install the needed wireless drivers from 'Hardware Drivers' (Broadcom STA wireless driver) and I got wireless connection, but it randomly disconnect, and also connection is very slow.
I think that the problem are the drivers which are not very compatible with this version of Ubuntu, which means we need to wait for update? I have HP ProBook 4510s laptop, Intel PRO/Wireless 5100 AGN network card & Gembird NSW-R2 router. I'm only having this problem on Ubuntu 10.04, on other OS's the internet is fine.
I have been useing Ubuntu for 1-2years now. Lately I've been having some troubles with my wireless Internet connection, almost every 1min i disconnect and connect again few sec after and thats like hell if you try to fx. update. I have 85-92% signal so thats not my problem.I use Ubuntu 10.04 and the standard network manager. I'm connected to a netgear router and my computer is a acer aspire one.
I tough that firefox was the problem of my very slow web sites loading, but I am suspecting that sometimes the internet connection is the reason, maybe for some reason that I don't know it can not just connect to the site.I am running Linux quick-desktop 2.6.32-22-generic #33-Ubuntu SMP Wed Apr 28 13:28:05 UTC 2010 x86_64 GNU/Linux.when I browse the web it is very slow to load.sometimes I get this error message.Could not locate remote server.Even I know the site is up running like google.
My network is barely functional. I'm running 2 linux servers connected by openvpn (tun) through routers on both sides. There are Windows clients (98 and XP) on both subnets. One server (ls3) acting as PDC for the domain. The Windows clients use the respective linux boxes as gateways. On the server side (ls3 which is both openvpn server and samba server), all the clients can read/write properly to shares on both sides. The problems are all on the client side. Share connections to the server side disconnect after a few moments.
Browsing on the client side windows machines is fine. I can see shares on the server side. Some server side files open and are readable, writable, other server side files will not open. Some samba logon scripts on the server side can be opened from the client side. Others open after a long wait to a blank file! Permissions on server side files are set to 777 for testing. If a file won't open or reads "blank", that doesn't change no matter how many times you try. A non-readable/writable file overwritten by a readable/writable one can be read and written to!
I can ping successfully from any client on either side to any other client by either ip address or workstation name. Firewalls on both side are set to forward tcp and udp traffic going to port 1194 to the respective gateway linux boxes. Iptables on both linux gateways are down for testing. I tried reversing the openvpn server/client roles with the same result; the same physical side of the network had the problem. On one of the windows 98 clients, I wiped out the networking configuration completely and rebuilt it from scratch. Same result.
One one of the windows xp clients, I tried to rejoin the domain. It went through successfully but the result was the same as above. The network was operating smoothly for several years until the client side dsl modem broke last week. It was replaced with a newer model and at the same time I migrated from a pptp connection to openvpn. How to resolve this, Is this something to do with openvpn? Is this a network hardware problem? Am I missing something in the port forwarding on the routers? My smb.conf files are ancient except I added interface tun0. I have never seen 2 files sitting next to each other in the same directory where one opens and the other doesn't!
I'm running Mandrake 9.2 on the client side and Mandriva 2008 on the server side. I have a Sonicwall firewall on the server side, a Westell 7500 on the client side. I note that during the modem install, the http port was opened to the linux box on the client side and the access log got huge over the weekend and I ran out of disk space until I closed it down and deleted the log. I tried a simple test while viewing /var/log/daemons/errors on the client side. From a windows workstation in the client subnet, I opened a dos window and tried to print a file located on the samba server on the openvpn server machine which I knew NOT to be problematic.
The file printed and there were no errors reported in the log. I repeated the test with a known problematic file. The file would not print. The errors log noted: Authenticate/Decrypt packet error: packet HMAC authentication failed I regenerated the static.key file on the server side and scp'd it to the client side and restarted both openvpn's. I checked for duplicate files named static.key on both sides. Same error.
I'm recent to Ubuntu and have just installed version 10.04 32bits desktop version along side my Windows XP.My wireless internet connection works perfectly under Windows XP as this thread can prove it, but it does not work on Ubuntu.When checking the connections on Ubuntu I see:Wireless Network - disconnected.
Recently installed Ubuntu 10.04 on HP Pavillion ze5400.Wireless card is bcm94306MP. Wireless connection shows as disconnected. I am troubleshooting using the Ubuntu documentation on solving wifi problems. Ran ishw and it appears I do not have a driver properly installed. Obtained what I believe is the driver: bcmwl5.inf and bcmwl5.sys. Installed bcmwl5.inf using ndisgtk. I know its there as I can see it in System>admin>windows wireless drivers. However lshw still does not show it under configuration. I understand I must put the sys file in the same folder as where this inf file got installed. I assume all I do is copy and paste it into that folder. Is this correct? Next I need to find that folder. I tried the command find /home -name bcmwl5.inf and it did not show up. Can someone educate me just how to do this, that is find the folder and insert the sys file?
After I pass this hurdle then I will tackle trying to configure the card.
I am using Ubuntu 10.04 LTS - Lucid Lynx(great interface!). But I am experiencing a very weird problem. The wireless internet works just fine at my apartment. But when I am in my school, it just stops working at all. It didn't use to be like that. It used to work in school too few weeks before. But I don't know what happened all of a sudden. I have checked with my school system administrator to know if there has been any change with the network. He said the network has always been the same.
I'm using a WUSB54GC network adapter to connect to my home wireless network. My network was not visible, so I added it and it shows connected, but when I launch the browser, I can't get a connection. I'm using Ubuntu 10.4. All other computers on the network connect fine and I disabled my firewall to see if that made a difference.
About a week ago I upgraded to Maverick from Lucid.
All networking worked fine on Lucid.
I am using an Acer Laptop with the Atheros AR928X Wireless Network Adapter.
I can connect to my home network (visible, with WPA2-Personal) fine. However, I cannot connect to my university's wireless network. The only difference I noticed is that its network is using WPA2 Entreprise with Tunneled TLS Authentication and MSCHAPv2.
I have a laptop Acer aspire 5100. I installed Ubuntu a while ago and it was working well. Last week I updated it using Update manager and ever since I haven't been able to connect either wireless or wired connection.
I just finished upgrading from 9.10 to 10.04 via the Update Manager. My first noticeable problem is that my wireless connection with my home network no longer functions on my IBM Thinkpad T42 laptop.The Network Manager applet shows that it detects my home network (and those of several of my neighbors), but I have not been able to get it to connect to this network. I've been using WPA & WPA2 Personal settings for security, and the Network Manager applet had correctly picked up the password that I had been using under 9.10. I've searched the Ubuntu Forums for "wireless T42" and thought I'd found a solution in a posting that recommended using the "wcid" network manager, but I've been unable to find wcid either via the Synaptic Package Manager or the Ubuntu Software Center.
1. I've noticed that in Lucid Lynx the Network Manager applet's icon in the top panel is no longer the vertical bars symbol that it displayed in Karmic Koala; instead, the icon is a radiating fan display. In the Network Manager's edit Network Connections window, this fan icon is shown on the Wireless Connection tab, while the vertical bars icon is shown on the Mobile Broadband tab.
2. The Wireless Connection tab shows, on the line in which it shows awareness of my home wireless network (as "Auto 389690") that this connection was "Last Used" "1 month ago". It should be saying something like "today".
FWIW, the Network Manager detected my wired "eth0" connection with no difficulty.Both Jaunty and Karmic picked up my home wireless connection without any problems. Now I have no idea what to try next.
I have just installed Maverick meekat on my new laptop with Wubi, and I have been trying to setup my wireless connection, but i couldnt. The first thing I tried was going to System>Prefrences>network connections, and clicking on the wireless tab. I tried to add a network think manyally, and I miserably failed.
here is the information I have of my laptop as of now after doing the lspci command in the terminal:
Also I have read somethings about ndis or using the windows driver and things of that sort. Whenever I am using windows, my wireless connection is working perfectly. So I dont know if there is a specific way to activate my drivers, or if my computer is just not capable of having wireless connection on Ubuntu.
I have a new installation of Ubuntu 10.10 on my Aspire 1640Z, and since I have it, it's impossible to connect it to the web. I have a wireless connection on a SFR Neufbox (I'm french and it's a french box I guess). I've tried to be connected with a Sagem key. I have another computer with Windows XP, which is connected wireless with the same kind of key. When I use Network Manager, there isn't any automatic connection : "no network connection" and when I click on the logo of Network Manager, I can't click neither on "<<filaire>> network" nor "wireless network".
I also used Wifi-Radar, but there isn't any connection again. I created a new network on it, with the SSIF, code WPA, MAC.. But there's no connection and when I try "connect" it writes "could not get IP adress" (even if I'm in DHCP). I went to Syst�me > Administration > Network Tools > P�riph�riques > Interface ethernet (eth1) > Configurer > Wireless and I've writen the WPA, SSIF etc. again of my box, without any result. Here is what I have in the terminal with
I have a problem with my wireless connection in ubuntu (natty with amd64bit) There seems to be intermittent disruption in my connection. Havent seen a pattern as yet, though it happens once a day. After that I cant get it to work at all and only restarting + reconnecting the USB device helps. Dont know what is going on.I have already read these pages : Commands and Wireless Troubleshooting.Here is my line of though1) Given that I am able to connect other devices to it while I am not able to connect through this desktop, I think the router is OK.2) I am able to work with it after restart + re-connection . And so the driver is OK and is loaded. The driver seems to be oK and loaded even while I am not able to connect.So why is this happening and how can I get this under control without having to reboot and re-connect the device everytime.Here are the output for the commands which will give you a more detailed idea of the process. Before reboot while I was not able to connect:
Code: Script started on Tue 23 Aug 2011 01:40:08 PM CDT raja@UshRaj: ~raja@UshRaj:~$ sudo nm-tool
I have a very strange problem with Fedora 12 and my wireless Broadcom 4311 card.After the installation of Fedora 12 the wireless card was visible but not activated. I did an extensive search in Internet and finally I got everything done. The card was visible and activated. I found my home network; the strength of the signal was nearly 100%.The problem is that although the card is visible and activated my browser is not working well. I can say that it is not working at all. Even now I am using other computer to write this message because Firefox cannot load any web page at all.
The strange part of the problem comes with the fact that when I open terminal window and when I am using yum everything looks OK. The speed is very low though.Does anybody have some ideas about the problem and its solution?When I use Windows on the very same computer everything is fine, the Internet speed is close to the maximum limits of my provider's speed which is 10 mbps.
I have a dual boot (XP Pro and F13) laptop. This laptop has a Ralink RT2501USB Wireless Adapter which works perfectly fine on XP. But when it comes to F13, adapter only works properly when I am physically next to my router. When I move few feet away the strength of the connection drops from 100% to around 40%. But even though 40% should be okay for slow connection to internet, I can't get any internet access at all. I have tried three different routers with same results on each.
When I boot same machine with windows XP, all works fine. I can move to any part of my house and I will still have the connection without any issues.I can see that RT73 driver is installed if I check in add remove program under system.I am not an expert but to me its seems that the drivers on F13 for RT2501USB are not as good as on windows?
I'm using Archlinux with NetworkManager to connect to the internet. When I'm in my room, I've an ethernet cable and still receive the wireless signal.Sometimes (like when we have a power cut, somebody is rebooting the router or simply something wrong with the provider), I'm disconnected during a few seconds, NetworkManager ask me again the password of the wireless (even if it remembers it), and then I'm ok.But when I'm not in front of my computer, while I haven't push the button "ok", it doesn't connect, even with the wired connection.That's not very normal in my opinion as there is supposed to have two different and independent connection. No ?
I intent to install an ssh server on my computer but if I cannot access it every time there is a problem that won't be very useful.
I have ubuntu 9.10 and my wireless connection has been working perfectly until a few weeks ago when I updated my laptop. I can connect to the internet using my wired cable but not by wireless. There is nothing listed under my wireless list. I am new to this and have been unsuccessful in getting my wireless connection going again. I don't even know were to begin. I have a 2wire modem also.
I've been using a RealTek 8190 PCI wireless card on my desktop in Ubuntu 10.04. The net819xp driver worked fine in ndiswrapper. Then my housemates got a new router and switched our wireless SSID & password. In network manager, I can see the SSIDs, but when I try to connect to our SSID, it continues trying to connect but never does connect. Something related to the router change and router firmware upgrade created this problem and i'm sure i need to fix it on my computer. All my windows7 flatmates are connecting with no problem. Right now I'm using my laptop, so i can't copy & paste results from terminal commands,
I recently installed ubuntu in my laptop using a usb stick. everything seems to be working fine except the wireless connection. the notification area doesnt show wireless network at all. i tried browsing many forums n folled the steps suggested but in vain. with the command
sudo lshw -C network i get result as: unclaimed
so, i tried using windows wireless driver (its Broadcom). i cannot install the ndisgkt package from the package manager. The package is shown but when i try to install, the package manager shows 'In Progress' and nothing happens. Hence, System → Administration → Windows Wireless Drivers is not displayed at all.
If a driver can be downloaded n installed, how to do that. I would download the wireless driver from my windows OS n install in ubuntu.
I buy a new usb network adapter (Through DX), when I try to use it in ubuntu or BackTrack4 Final it is working, and connecting networks even with WPA encryption. But after few minuts it stops working totally. It is showing that I'm connected to the AP but web sites do not respond.
Notes: - I have another PCI Wireless adapter which works fine.
- The problematic adapter works great on windows.
- A driver CD came with it, including a linux driver which I wasn't succesfully installed.
- A BackTrack3 Disc came with it, claming by the instructions that the adapter will work with it. I didn't try it because i have backtrack 4 final.
It took me dozens of surfing the web hours, and too many restarts,
I'm having some problems with my wireless connection. I'm on Ubuntu 10.04, on a HP ProBook 4520s, with a RaLink RT3090 wireless network card. I installed the drivers (hopefully correctly), the wireless seems to work correctly, it scans and finds networks, but when I try to connect to one, it times out after some time, while still attempting to connect. I also have a wired connection that works correctly and without problems. Other computers that try to connect to said wireless network manage to do so without any problems, so this has left me a bit baffled, since, like I said, everything seems to be in order.
I'm a new Ubuntu user, so please tell me what other information I need to provide in order to easily and successfully facilitate troubleshooting this, because it is, as you can imagine, quite aggravating, having a laptop that needs to be connected to the internet through a cable.
I'm having this problem, when I close the top of my notebook and later re open I find that my wireless connection got disconnected, which is very annoying since I can't make large downloads...(I'm on OpenSuse 11.3)