Ubuntu Networking :: Have To Restart To Reconnect Because It Shows No Networks In Manager
Nov 20, 2010
So i installed ubuntu 10.04 on my Hp dv9000 and all went well, then a few days after it asked if i wanted to update to 10.10 so i did and this is where things went kookie.
After i installed i noticed my wifi was all screwy. It would connect but kick me off after several mins of use. I installed WICD hoping that would fix the problem but it didnt. internet work for a few min and then just suddenly cuts out and i have to restart to reconnect because it shows no networks in the manager?
I have an IBM ThinkPad W700 running 64 bit Ubuntu 9.10 Karmic Koala. At the office I normally connect it to the Ethernet since it's never connected very reliably to the wifi there (drops out 2 or 3 times per day, usually at the worst possible time, of course), but it always worked just fine with Netgear WGR614v5 at home... until a week or two ago.
I used to be able to come home, take the laptop out of suspend mode, and it would connect to the wifi. Occasionally there'd be some hitch and I'd have to restart the network manager (sudo /etc/init.d/network-manager restart) but this was only sometimes, and when I did, it'd always work. But now, when I get home from work, I need to restart the entire system to get it to connect properly again. Without restarting the whole system, it either doesn't scan for wifi networks, it doesn't find any wifi networks, it keeps stuffing up my wifi password, or it connects and gets 0% signal.
Presumably, some driver was updated recently and it doesn't work so well. What's the easiest way to find out what drivers have been updated lately, and revert to a previous version? And what else can I try restarting so I don't have to restart the entire system? I've tried /etc/init.d/network-manager restart, /etc/init.d/networking restart, /etc/init.d/network-interface restart, and restart network-manager. I've also tried turning the wireless switch at the front of the laptop off and on, many times.
The info above is when I've taken my laptop out of suspend mode and it won't connect to the network. lsmod doesn't say anything about wifi nor wireless; iwlist does see my network, which my older Januty laptop is connected to without drama.
I have a problem with network manager. I use Ubuntu 10.04 on a Dell Latitude D530. I used to have the same problem with Ubuntu 9.10 before I upgraded. I typically connect to two wireless networks: HOME and WORK. Both networks are set to automatic connection mode. I am at work, I connect to the network WORK. At the end of the day, I just close the lid and go home. At home, I open the lid and have the following problem: network manager still displays the network WORK whereas it is clearly out-of-range and it automatically tries to connect to it. It does so until network manager asks if the password is correct.
If I want to connect to HOME, I have to tell network manager to do so. Then, I receive a notification that I am disconnected to WORK. Next morning, I go to work, and I have the same problem, network manager tries to automatically connect to HOME. What I would expect from network manager: when I am at home, NM automatically connects to HOME and does not display WORK, when I am at work, NM automatically connects to WORK and does not display HOME.
I'm trying to search for more wireless networks but i cannot find a way to make network manager search for more wireless networks. It only displays 2 wireless networks and none of them is mine, even though I've got my wireless router at less than 1 meter from my PC.
A couple of weeks ago my laptop's wifi started acting up, to the point that it didn't function. When I click the nwManager icon to being up a list of available networks, it is empty. If I try to create a new network, with the credentials of my modem, it appears to work, and asks for the password. After I enter the password, it seems to work for about 30 seconds (much longer than normal) but then it prompts me again for the password. This cycle continues indefinitely.
I'm running Karmic on a Dell i1525. how to find out what wireless card I have.
I have been an Ubuntu user for a year or so. My level is still ultra n00b but I am trying. Whenever I update Ubuntu there is always a WiFi problem, always. So now I am having problems getting wifi to work in 10.10. In Network Manager I can view wifi networks fine but I cannot connect. I tried with wicd also but I got as far as "getting ip" and then it would hang up.
lspci
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I am not sure what driver I am using as I don't know how to exactly ID my driver. I know there is a way to ID the driver using airodump-ng but I have yet to find it. I have a feeling this is a driver issue as one time I was able to establish a connection that then dropped a few minutes later. I have a feeling I should be disabling/removing the current driver and replacing it with ipw3945 or possibly a driver ndiswrapped? The problem is I cannot figure out how to remove the current driver.
I was going to switch back to 9.04 but I thought I would try to manually figure this one out instead of taking the easy way.
I'm running Ubuntu 10.04 server 64bit. I'm trying to get my ASUS PCE-N13 wireless PCI card working for searching and connecting to wireless networks. But I have no networks applet appearing in the panel. system->preferences->sessions has the Network Manager enabled The Notification Area is added to the panel. system->preferences-Network Connections-->Wireless[tab] shows a pink box, with no available connections.
I've installed ubuntu 10.04 on a hp mini 110. I've used netbook remix on this same computer and had no problems with a wireless connection. In this case, network manager shows wireless disabled. I have installed the Broadcom B43 Wireless drive from Adminstration->Hardware drivers. No help! ifconfig does not show eth1 and lspci tells me that the Broadcom BCM4312 Network controller is present.
I have two wifi routers. If I stand next to the main one with my laptop I can connect and access the internet no problem. The other router is in my office, and the bridging is messed up, so while I see the essid and bssid using 'iwlist scanning' and nm-tool, I can't connect to it.
Now, my main router's signal still reaches to my office, just not as strong as the borked router in my office. I need to be able to choose which wifi network to connect to without wasting time walking between rooms. I added entries for both in network-manager, but it doesn't show them in the list when I left click the tray icon! How the do I connect to the network I want?
I am trying to configure my android phone (rooted Eris running kaossfroyo 2.2) to be used as a midi controller. Which I am having enough trouble with as it is but it has raised an annoying issue that occurred a month ago when I used the phones tethering network with my laptop. After connecting the laptop to the phones network (either tether, or an Ad-hoc network created using the network manager) I am unable to switch to other networks. In other words when I'm done with the phone-laptop connection I cannot connect my laptop to my home network! When I click on the other network connection I can see that it is attempting to connect in the upper right corner of the desktop (the network icon) but it will not make the connection.
What happens is that the network indicator will make the little circle graphic as if it is trying to connect but it never will display the other circle as green indicating that it has connected. but when I disconnect from the home network that is not connecting I will get a message underneath that will say that ad-hoc network disconnected! If I am switching from the android tether it will say Android-Tether disconnected etc. Even though when I click on network manager it shows that I am attempting to connect to the home network (labeled LIBERTY in my case) upon disconnection it shows the ad-hoc or tether connection being disconnected.
I am absolutely baffled by this! The issue persists even after deleting the ad-hoc connection from the wireless settings tab!!! I would speculate that for some reason the laptop is attempting to connect to the previous ad-hoc connection despite me wanting it to connect to LIBERTY. I am very confused and hope someone can lead me in the right direction.
For reasons that I do not understand, the xfce indicator applet has stopped working. It's not visible, so I cannot see thinks like the wireless applet.I can't find anything from searching the net.I suspect that it has something to do with dbus.Perhaps it's related, but whenever I choose to shutdown or restart, it now goes back to the GDM login screen instead. I've had this problem before on earlier Ubuntu distros, but I don't remember how to fix it.
Have been running Karmic 910 for six months on a Dell Latitude D510 laptop with a Pentium M CPU, 2 GB of RAM and Intel 915 graphics, and I really like it, especially the Gnome desktop. However, a glitch occured after suspending, resuming, shutting down and trying to restart. Now after selecting Ubuntu in Grub the Ubuntu logo shows up onscreen, doesn't seem to pulsate, and eventually is replaced by an error message that the system gave up waiting for root device.
The LiveCD shows the Ubuntu partition as unrecognized, unknown or unused in Palimpsest Disk Utility, though Gparted shows it as normal ext4. The partition doesn't show up in Places. From the command prompt (via ctrl-alt-F1) I'm able to run fdisk, which shows the partitions but am unable to mount the Ubuntu sda4 partition - the error message is that the file type must be specified.
Starting recovery mode in Grub brings about 25 lines of startup messages, mostly dealing with usb devices, but a few render errors are there too. The last message before dropping to the ash shell is that a device could not be found. (ALERT! /dev/disk/by-uuid/5cee... does not exist.) The ash commands are completely new to me, so I haven't had any luck with recovery mode.
If the problem is related to Intel graphics, I would like to try some "quirks" (software fixes for hardware problems, including Intel graphics bugs) mentioned on the ubuntu.wiki site. I'd also like to recover the data on the desktop, but so far cannot get into the file system.
Does GRUB need to be reinstalled? If so, why?
Would reinstalling without formatting anything preserve the data?
Would upgrading to Lucid help prevent the problem from occurring again?
I didn't find a solution to making my 3G/GPRS "modem" reconnect automatically when the connection fails, so I made a solution of my own. It's very annoying when you're downloading a file overnight, only to find that the connection has failed 5 min after you went to sleep.Restarting the NetworkManager daemon makes it automatically connect to all configured interfaces, including 3G/GPRS, so I made a simple script to do that.First, we check if the modem is even connected. Replace Huawei with the brand you're using. Any unique word on the line in lsusb will do fine as well. Then we check if the connection is up, and if it is, we simply exit. Otherwise, the NM daemon is restarted, which causes the 3g/gprs to reconnect.
I could use Wireless network. I could see several different networks in my range. Then suddenly the network stoppedworking, and I can no longer see any networks under "Wireless networks".The Wired networks works fine.I tried upgrading ubuntu, but nothing changed. Just to confirm, I rebooted the computer in Windows Vista (Dual boot) andconfirmed that Wireless worked fine there. No hardware problem then.The suggestions I have found on this and other forums suggest looking at the output from iwconfig and ifconfig. But since I'm a n00b at Ubuntu I don't know what to make of it.
This is the output: emil@emils:~$ iwconfig lo no wireless extensions.
wireless disconnects after a few hours, there is a 50/50 chance that the reconnect fails. if it fails i am asked for the wpa2 key, if i hit cancel and try to connect manually after 2 minutes it connects most times. if i enter the wpa2 key and hit connect i won't get any connection. reading the loglife of my router shows that my laptop connects and disconnects in a 7s rhythm. a restart solves this problem (is there a command to manually restart the network without the need to restart?
probably related, after suspend or hibernation networking is disabled, enabling it via right-click does not work again after a restart everything works how it should.
I just started using Ubuntu at the advice of a friend. I am running it from a flash drive.I have a wired network that always works fine with Windows on this computer.After starting up Ubuntu it connected right up and I was able to use it. Then, out of the blue the machine shut off. Upon restart, I was unable to connect to the internet.I reinstalled Ubuntu to a different flash drive and it worked fine once again.I left the computer running while I went out for supper, returned and the computer was "asleep" and would not wake back up.I shut off the computer and restarted Ubuntu.No internet again. As always, it works fine in Windows.Also, BOTH times this has happened, the OS says I am connected to the internet, and I can turn the connection on and off, but it is not connected. This happens even if I reboot the computer. (I have a cable connection.)
I'm having a problem with the wireless on my Asus EEEPC 1000HE using Ubuntu 110.04. Digging into the laptop forums, it says there is a problem with wireless on some models of the 1000HE, but it is not the same wireless device and my wireless problem doesn't seem as bad as listed, so I think it's a different problem. But my problem is that if wireless drops for any reason, it will not start working again unless I either reboot the computer or click the wireless icon in the systray, click disconnect so it stops flashing (like it's trying to reconnect) and then suspend my computer or log off and back on. And it only does the latter because I added a file located at /etc/pm/config.d/00sleep_module with the one line that reads SUSPEND_MODULES="rt2800pci" (my wireless driver) So that one line seems to cause wireless to get a fresh connection after suspending (or something. I'm not a very advanced LInux user). I've tried running the command "sudo/etc/init.d/networking restart", but that does nothing for me. I'm not sure what other command to try to see if can fix it.[URL]
I can reconnect to internet after disconnecting (this happens every 3-4 hours) only if I manually poke out and in ethernet cable to network adapter or reboot ubuntu. Even restarting network-manager not helps. My provider provides internet over pppoe. I have "DSL-connection 1" item in network managers gui menu. And that item disappears after disconnection.
pppd runs with following arguments: lcp-echo-failure 3 lcp-echo-interval 20 So where can I change this parameters, where is that configuration file?
Recently I've installed Ubuntu 9.10. I have DSL connection so, I wrote all details needed. After trying to connect on it, it automatically disconnects and connect auth connection again. I have worked on 9.04 and older versions and used to work very good, also the internet connection, but not in 9.10.
Running Ubuntu 10.10, and I can't get my WUSB100 v2 Linksys adapter to work. I've tried what's in this thread: [URL] Entered lsmod |grep rt into Terminal and found out it runs on the rt2800 chipset, so I blacklisted everything necessary. It finds and connects to my network but after about 10 minutes it disconnects and won't reconnect.
Lately, my ISP has started making all Google sites inaccessible for a short time every afternoon (last 3-4 days now). I suspect some kind of DNS poisoning... access always comes back later in the afternoon.
When access does come back, non-Linux machines can connect basically right away, but my Ubuntu machine (the primary one I use) seems to need a reboot, as if wrong DNS information gets stuck in the session and the reboot clears it so that the machine can get the correct IP address.
I have not installed nscd, and IIUC the OS should not be persisting DNS cache information without that package. Every reference I can find online to clearing the DNS cache seems to depend on this package.
The objective is just to get back in touch with my Gmail without having to reboot (since e.g. OSX doesn't require a reboot for the same). What should I do?
I am fairly new to linux. I have Ubuntu 10.10 on my Dell Inspiron E1705. While browsing my internet connection suddenly stops working. It says that I am still connected but the internet doesn't work. When I try to disconnect then reconnect it will not connect to the network. To get it to reconnect i have to turn of the wireless card, delete the connection then restart, turn the card back on and reconnect.
Running 10.10 on Hp dv2000. Approx once a day wireless asks for password authentication but cannot re-connect to wireless network. I verified connection, correct password and modem & router functionality but still will not re-connect. After re-boot problem is resolved for another day or two.
I use network-manager-gnome to connect to my wireless networks, but I can only use it with a graphical environment, and it doesn't even work that well since it will drop the connection after a few minutes and I have to reconnect it manually, that means I cannot leave my computer downloading a big file all night since it will only download for a few minutes, does anyone know what package can I use to connect to my wireless without the need of network-manager, even if it's through command line?
