I do randomly (as far as I know) loose my wireless network connection. The only thing to do then is to restart my router and after that it works for a while. I know this is not a hardware issue because I don't have this problem with KDE, only in gnome. I think this problem occurred after I started using 10.04, but then I changed to KDE and forgot about it. But now I'm using gnome again and loosing my network connection over and over drives me mad
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
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.
The WIFI adapter is working, WIN driver is in use (with ndiswrapper). Linux driver doesn't exist. No issues until computer does to Sleep mode. Then just reboot it. Some times iwconfig commands helps.
Running Debian GNU / Linux 5.0.4 on an older Gateway tower. Have been using this for a year now but it seemed lately that the browser was loading pages slowly. I checked the Network Icon and every time I check it indicates "disconnected" then refreshes and indicates connected. The log makes references to redat, which my machine has nothing to do with? I checked the system logs and get the following repeated messages:
an ubuntu with address 192.168.1.100 an OpenSuse with address 192.168.1.106a windows xp with address 192.168.1.102And these are connected via a DSL router/switch (4 ports eth) .My purpose is config the ubuntu as a Firewall and NAT server for investigating the network layer packet with specific policies .well, I've used the following script :
Since I updated twice to the two newest versions (currently, Cairo Dock 2.1.3 beta) it every hour or so it randomly restarts which causes 50% tray icons to go bye bye (especially those of Wine programs). If I want to get them back, I have to restart the computer or at least the program with missing tray icon.Anyone knows why CD restarts or how to get back my missing icons after it does?
I have an LG R-450 laptop with Ubuntu 10.04 installed in it. When I connect him to a network (either LAN or Wireless) it stays connected for a few minutes and then Just disconnects (without showing any sign of disconnection except no internet/skype/dropbox). Only way to renew connection is after startup. The network controller is SIS 191 Gigabit Ethernet adapter.
my wireless will connect to a well known connection but will sometimes drop the connection then tries to reconnect. Sometimes it will reconnect w/o a problem but most times it will fail and when it fails it will refuse to even recognize that same wireless connection.
If by a small chance it does recognize the network then when you click on it, it will ask you again for the password, which is already saved onto the computer. After entering the password it will try to reconnect, then fail.
Only solution is to reboot.
I was wondering if there was an easy temporary fix of just reloading the software that controls the wireless.Such as, my audio doesn't work when I boot. I need to reload the ALSA driver using sudo /sbin/alsa force-reload
Is there something specific to the wireless that I can force-reload and it will start working w/o having me reboot my PC?
I have a windows installation (partition) but have installed into freespace on the same drive using the auto-partition manager, etc, and everything is fine. I got my network going fairly easily by going Preferences > Wireless and inputting SSID and WPA encryption key (PSK). My router issues an WLAN IP, I can get on the net, I can see my other Windows PCs on the network, I can reach my router, and all is good.So after several hours of mooching about and looking at things, I have updated all the Linux packages via Synaptics (following a prompt to update everything) including GRUB. My dual boot now shows two versions of the OS:
GRUB 1.7~Beta4 Ubuntu, Linux 2.6.31-19 - generic (I am booting this one) Ubuntu, Linux 2.6.31-14 - generic
I also set up my HP F4580 printer over wifi on the network though with slightly incorrect drivers (for the F4400 series as this was recommended at the closest match). It works, and I can print a test page no problem.The only thing is that now (since doing all that) Ubuntu seems to periodically drop my connection to the network and then request the network PSK again, but when I enter it, it spends time trying to renegotiate but fails, and then re-requests the PSK, over and over and it never reconnects. I have to reboot and then I can connect again (automatically), until it drops at some random point (like 5 or 10 mins later)
I could not find a solution to this problem anywhere. I use a ubuntu server to play (stream) mp3s and movies to other computers on my network. It works most of the time, but sometimes in the middle of a movie or a song it will drop/hiccup--saying it is "not reachable". I am not overtasking the server at all, and merely playing an mp3 that takes up less than 10% of the bandwidth, yet it drops it for a split second.
I have a WRT160N router (DD-WRT of course) with 4 clients connected (2 of which are wired). The ubuntu server is connected via ethernet and all machines have the same issue. It can't be the router because another Windows machine works just fine for streaming these files. I just can't understand how it can lose connection for a second or so. It may just be the file-system or some service that is hiccuping, but I have no idea...
My internet connection drops randomly in ubuntu but works fine in XP.The connection is not disconnected but i cant browse any sites,so what i do is i will reboot my system so that i can surf again but after few minutes the same problem is happening again
I am running the newest version of Ubuntu on my laptop. The connection randomly seems to massively slow down. After a speed test is run it registers at .05 download and Ubuntu crashes before it gets to upload. I reboot from the crash and it runs fine for a while, then it suddenly does the same thing. The connection is running fine on my Windows 7 desktop, I don't know what is going on. In transmission the upload speeds are running at ~100kbps though. If I try downloading a mere 400kb .torrent file it stops half way through, usually at 200-300kb done, downloading at 1.2kbps the entire time. This is getting very frustrating and I really don't want to go back to Windows.
I have an Asus laptop with a BCM4318 wifi chipset. result of lspsci command about wifi cards:
Code: 00:09.0 Network controller: Broadcom Corporation BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02) For some reason, I often get disconnected. Once it's disconnected, I cannot connect anymore and I need to reboot my laptop in order to get the connection back! I didn't have this problem when I was on Ubuntu 8.04. I checked in /var/log/syslog and I found this when the network is disconnected:
My ubuntu karma desktop is plugged into a wired connection that goes through a router and into my cable modem.Everything was working fine like it had been foseveral months yesterday morningSomething happened by the end of the day that has screwed up my wired networking. I plugged my laptop into the same cable thats plugged into my ubuntu, and the cat5 cable is live. Also when I plug said cable into the ubuntu box, the ethernet lights come on, or atleast a solid green one. Meanwhile the network connections Icon continues to have a red X and a tooltip saying "No network connection".
Under network settings, there is only one wired network "Auto eth0", but it says "last used: never" which is strange since I've been using this for months. When I click edit the main settings are MTU automatic, ipv4 automatic DHCP, and ipv6 ignore.hat could the problem be? By chance did a karma update get released that broke the networking
The title pretty much says it all. My eth0 will disconnect at random intervals. lspci:
Code: ... 01:08.0 Ethernet controller: ADMtek NC100 Network Everywhere Fast Ethernet 10/100 (rev 11) ... And lsmod | grep tulip:
Code: tulip 50592 0 Ubuntu 10.04 Linux desktop 2.6.32-24-generic #42-Ubuntu SMP Fri Aug 20 14:21:58 UTC 2010 x86_64 GNU/Linux
When it disconnects, it easily reconnects when I disable/enable networking. But until I do.... Update: It disconnected again right after I posted this. Here is what dmesg | grep tulip:
I have installed XUbuntu 10.04 but cannot connect to WiFi. Here is what I know so far: Hardware and Software configuration: Compaq Presario 2100US XUbuntu 10.04 (installed Dec. 2010 from Live CD dated Oct. 2010) Kernel 2.6.32-21-generic Gnome 2.30 RAM Memory: 938.7 MiB Processor: Celeron Disk Space Avail 23.2 GiB Wireless Card: MSI Wireless 11G CardBus CB54G2 *MSI Driver rt2500pci located in system (see below) No wifi 'on' 'off' hardware switch on machine
Prior to the install of Xunbuntu 10.04 (Lucid Lynx) the machine carried MSXP. The wireless card came with the machine. The machine used a cable connection by previous owner. Connection's been working fine in Ubuntu Jaunty Jackelope and Puppy Linux. Wireless card appears to be functioning. The system scans for the network, shows that connection is established by both icon in tray and message saying that a connection is made. The card shows both green lights active. The light that indicates a connection is on and randomly flickers. Tested Firefox for connection. Firefox is not receiving anything from the system. I have got the network manager functioning enough to say that I have a 'connection' but still cannot connect to server.
Network Connections wireless: linksys - mode ad hoc - MTU auto wireless: security - none (I borrow from a neighbor's wifi) IPv4: auto(DHCP) IPv6: Ignore *Driver rt2500pci located in /sys/module/rt2500pci/drivers/ (There is a 'config' file in this directory)
Help menu in 10.04 is listed as help menu for 9.04 so don't know if applicable to 10.04 debugging. When 'troubleshooting' wireless connections, I did a *sudo lshw -C network* command on terminal. The results *do not* show 'Claimed, Unclaimed, Enabled or Disabled as help menu indicates. The line that would show that information (*-network) doesn't have 'Claimed, Unclaimed, Enabled or Disabled'. I can send image of this query. I have tried two other wifi cards with similar results, no connection.
Since I installed Ubuntu I've had this problem that makes me loose connection to the Internet. The wireless-icon on the panel starts loading, and after like 5 minutes, it works again.I had this problem when I had Mint 11, but it happened more often.Anyone know how to fix? Edit:Network: Card-1 Atheros AR9285 Wireless Network Adapter (PCI-Express) driver ath9k Card-2 Marvell 88E8040 PCI-E Fast Ethernet Controller driver sky2
Hey all, I have got this strange problem with my Slackware server acting as router and gateway to my internal network. It randomly disconnects the WAN connection after X days ( it is between 2-7 days ). This error messages occured in /var/log/messages just before it lost its WAN connection:
Feb 20 14:36:00 tml dhcpcd: eth1: failed to renew, attempting to rebind
I'm dummy in linux world and maybe someone can help? Installed Opensuse 11.4 64bit on Hyper-V virtual machine all is working fine except sometimes lan connection is lost.
Code: /etc/init.d/network restart is not helping and I need manual reboot.Why that? What's problem? In routes table I can see default gw. Code: Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 178.16.16.192 * 255.255.255.192 U 0 0 0 eth0 link-local * 255.255.0.0 U 0 0 0 eth0 loopback * 255.0.0.0 U 0 0 0 lo default 178.16.16.193 0.0.0.0 UG 0 0 0 eth0
I have been successfully using my speedtouch usb 330 for years.
Now suddenly something weird occurs.I manage to stay connected a few minutes, afterwards the line drops down and I can't reconnect.
I switched the connection script to "verbose mode" and what I get is:
It seems that I can't get an answer from the provider, but if I reboot it connects at first attempts, but the connection falls down again after a few minutes.
I have dual boot. No similar problems is affecting the connection under Windows, so some hardware fault is ruled out as a possibility.
I have a Huawei E220 3G modem and I'm using Ubuntu 9.10. The modem picks up on USB, and the connection works, sort of. With random times, I can't get on the internet, and when running:
Code:
mtr -n -c3 -r 4.4.4.4
it tells me:
Quote:
Could not get fd's flags: Bad file descriptor No nameservers defined
Network Manager Applet 0.7.996 is reporting my wireless connected, and applications like Skype is working perfectly. I just can't browse.
When I restart a couple of times, and my internet browsing capability starts working eventually at times. The behavior is very random.It appears that when I fiddle with USB devices, like unplugging my external hard drive, and plugging the USB modem in and out, restarting, it helps. Also, when plugging in my USB 3G modem, an icon pops up on the desktop, mounting the USB device as a USB flash drive. The device has on-board memory, but can I disable this / prevent it from mounting?I also disabled IPv6 by setting:
Code:
GRUB_CMDLINE_LINUX_DEFAULT="ipv6.disable= 1 quiet splash" in /etc/default/grub
What I also did was to "hard code" DNS by adding:
Code:
prepend domain-name-servers 208.67.222.222,208.67.220.220; to /etc/dhcp3/dhclient.conf
After upgrade to Lucid I have experienced intermittent wireless disruptions. The wireless just cuts out and reconnects.And I was hoping to continue or follow up on the same thread however with the released version.I tried replacing network manager with wicd and I tried the other driver options both without success.I'm currently using the Broadcom B43 driver, when I tried the Broadcom STA driver wireless would not work. I use the 64 bit OS, and this problem did not appear prior to the upgrade.
I keep losing internet connectivity from within OpenSuse. I've had ubuntu/kubuntu beforeand never had a problem. I installed opensuse and now after a few minutes of browsing I'll lose my internet connection.I also dual boot into winXP without any problems.I noticed that when the connection is lost I can't even reach my router - which is where I'm getting the wired connection from.So it's not just the outside internet but the local network too. It only happens within opensuse.
I'm having a problem with my wireless connection. When it runs, it's perfect, but every once in a while (and increasingly more often) it randomly disconnects and doesn't reconnect when I click reconnect, even if I manually disconnect it. Every time this happens, I have to reboot the system, after which it works perfectly. Then it dies again.
I've checked around the forums, there are some similar threads but they seem to be specific to the wireless card. The reboot method works, but I'd really like to find a way to solve the problem without having to resolve to the Vulcan nerve pinch. I'm a real newbie to Linux and the more complex side of computers in general, and I hardly know what is what, so please excuse me if I seem a bit thick.
I'm having a bizarre problem where my network connection stops working randomly. At first I thought it was a DNS issue since Firefox simply chilled out on "Looking up [hostname]" until it timed out, but after further investigation (pinging IP's, "host" and "dig" being unable to reach servers) it became apparent that I couldn't even access the DNS servers i.e. the Wicked Connection of the East was most sincerely dead.
There are two strange things about this: one, there are no errors except "timeout". The network manager is happy, Firefox is happy until the lookup fails... Two, the failures only start *after* DHCP configuration. DHCP configuration never has any trouble sending or receiving packets. I'm going to try static IP and whatnot to see if that helps, more information later.
A friend who switched ISP's gave me his old Linksys WRT54-G wireless router. I went through the installation procedure and had a wireless connection up and running - smiley face. I had security set up for WPA, and decided to upgrade it to WPA2. Another smiley face. When I went to connect (had already done so successfully), I noticed it referred to my wireless as Linksys - I was expecting to see the SSID. So I started playing around in Network Manager and now I have things all effed up.
Don't know exactly what I did, but now I have no wireless. So I ran a few commands (lshw -C network, iwconfig, ifconfig, and iwlist scan), and looking at the results I see what appear to be inconsistencies in the output. I've posted them below, and make the following observations:
1. Under the lshw it refers to my wireless connection logical name as wmaster0, and has the correct MAC address, etc.
2. Under the iwconfig it says, 'wmaster0 no wireless extensions', but then refers to wlan0 as the wireless connection (although it does not seem to be running).
3. Under ifconfig I see both a wlan0 and a wlan0:avahi. The wlan0 has no IP, the wlan0:avahi does, but it is incorrect.
I have been getting from my wireless adapter. This has been going on for quite some time but only now am I able to see a pattern. The behavior seems to be the following: Start up, connects to network and work fine until I suspend my machine. On wake up, it works again but after a seemingly random amount of time the connection is lost and I can no longer find any networks. Attached is dmesg output after startup and connecting to a wireless network (dmesgAfterConecting.txt) and the same after the connection has been lost (dmesgAfterConnectLost.txt). I get this error which seems important:
My Acer's Wireless randomly stops working until you fully shut down and start the computer.(Not Restart but Shutdown->Powebutton) I am using Ubuntu 10.04 Lucid.
I am wondering if anyone knows why it would stop working properly, and/or how to fix it?
And since this is a off and on problem I might not be able to provide details immediately from time of crash, since I need my computer on the wireless.
One symptom that really stands out is that the cooling fan is spinning as fast as it possibly can and processor usage is spiking around 80/200 on a process called phy0.(relevancy unknown)
As I was typing this post on my other computer, my laptop crashed and I lost the lshw -C Network output I had. If asked to, I will post the one from when it is working. Also I will post any other info you need from when I can.
When I first turn it on to the desktop, it automatically connects and disconnects automatically 5 times then sometimes it would disconnect a few times randomly out of the blue.
This ia an external single usb wireless adapter you plug in the usb port on my desktop tower.
