I'm using Xubuntu 8.10, network-manager, Atheros AR2413 802.11bg NIC, and Radeon Xpress 200M with open-source ati drivers.
My problem is that I'm frequently losing my internet connection--whether I'm wired or wireless. It happens most often when I'm watching a ..... video but it happens other times too. My cpu usage is high when watching ..... (70-100%), so that may have something to do with it but I'm here because I really don't know.
I started having this problem when I switched from the proprietary fglrx driver to the ati driver. I switched because my laptop was always freezing halfway through a movie using vlc/mplayer. The ati fixed this but gave me my current problem. I do not want to go back to fglrx.
Here's what I've done so far to try to fix it without success:
-tried using noapci boot option
-tried using a different router
-tried using wicd
When I lose the connection I still have a strong signal. My lshw and iwconfig outputs are the same as before I lose my connection. However, I cannot ping my router when I lose the connection. I have to reboot to reconnect.
I just installed fedora 10 on a machine with a netgear ga311 gigabyte Ethernet card. Usually when I start it up I have a connection but after 5 minutes I lose the connection.
I am running Karmic AMD64 on a homebrew desktop PC, but I also previously had this trouble on 32 bit with different hardware and on Ubuntu 9.04 and 8.10. The router is now an ADSL+ Thomson TG585n supplied by O2 and badged O2 Wireless box III. The PC has a direct ethernet connection. The router was replaced by O2 when the problem first appeared, as the Wireless box II was suspect. However, I still have the problem and it is getting more frequent.
The symptoms are these: I generally shut down the PC each night, and only fire it up again when needed, which is usually the following evening, but it remains on for most of the day at the weekend. Very often when started, I find I have no connectivity to the internet, and cannot retrieve my emails. Strangely though, the Skype connection is still present and works, although not every time. My wife's laptop is connected over the wireless link - and that STILL WORKS! Sometimes I can connect to the router interface, but sometimes I can't. I've never lost the connection while the PC is running.
I have tried everything I can find in the router (when I can connect) and also in the Systemreferences:Network Connections and also in System:Administration:Network Tools, but can't find anything that helps. A re-boot of the PC doesn't help. A re-boot of the router doesn't help. A hard reset of the router on it's own doesn't help. The only solution to restore the connection is a hard reset of the router (using the recessed reset switch in the back) followed by a re-boot of the PC.
Since the Skype service remains working, and the lights on the router remain normal and wireless service doesn't fail, I think this has to be a DNS server problem. In the previous release, Jaunty, I changed the DNS service to OpenDNS within Ubuntu, overriding the router's settings. That seemed to help a great deal, although there was still the occasional outage which might have been another cause. I can't find anything in the GUI interface in Karmic that will let me do this, and I can't now remember how I did that in Jaunty.
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
lost my internet connection on fedora 12 ? i try to assaing the ip address manual in the configruation part but no nothing happen I've tried googling for the problem
A friend of mine is running Ubuntu. He used to run Windows XP, but he kept destroying it completely, and I soon got tired of fixing it for him. So I setup Ubuntu, and we're both happier people for it.BUT! The other day he asked me to setup a VPN (PPTP) connection to his workplace, which I promptly did. It also just works, except for one minor problem: When he fires up the VPN connection, I lose the ability to connect to his computer over SSH. As soon as he shutdown the VPN connection, I can once again log in over SSH.I use the SSH connection for basic maintenance and for tunneling port 5900 so I can assist him over VNC.
His nic is setup with DHCP. Gateway is 192.168.57.1. Port 22 is NAT'ed to 192.168.57.2, which is the IP his computer is assigned by the router (it's reserved to his MAC address).
When he connect the VPN, a new interface is created with the IP 192.168.1.32. I'm very much _not_ a network expert. I can manage the very basic stuff, but beyond that I'm quite lost.
I did a clean install of 10.10 just under a week ago and something is really wrong with my wired connection. I keep loosing all connectivity and have to connect again from the panel app. After that, every thing works again for about 30 to 60 seconds and the the connection goes again. No lost connection notification pop up or anything like that, but i cannot browse the web or download upgrades while the connection is gone.
Then the really weird part. Sometimes my connection works just fine. On some boots everything is fine for a long time (hours?) but then the problem comes back. My network card is an Intel 82567LF-2 and it uses the e1000e kernel module. I dual boot to Windows Server 2008 R2 and there I have full connectivity all the time.
I have a very strange problem with my Linux Router/Firewall machine where i keep losing my connection on the ethernet card.
I have installed a Debian 4 distro on a PC with 2 nics to create a router/firewall machine. On nic-1 i have connected the ADSL modem and on nic-2 a laptop for testing.
What i want is to build a DMZ with public IP addresses assigned to the servers in DMZ.
Schematic example:
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We have a total of 16 Public IP's assigned to the ADSL modem from our ISP configured in routering mode. Unfortunately our new ISP does not support Bridge mode, otherwise i would not have this problem. (we had modem in bridge mode working fine with our old ISP, but they have stopped so we were forced to switch to another ISP. eth1 and eth2 both have public IP addresses from the modem set hardcoded in the /etc/network/interfaces on Linux pc and on my testlaptop in the DMZ (server-1) i have set another public IP (they all fall in the same network range) I have enabled IP forwarding on Linux router/firewall and for testing the firewall is set to allow all traffic.
When i try to ping the testlaptop in my DMZ from a remote machine outside in our datacenter i get no reply.
However when i run the following command: ip addr add xx.xx.xx.xx dev eth1 to assign the public IP i have chosen for the laptop to the inner nic (eth2) and then try to ping the testlaptop again from the remote machine it still does not reply ... but (and here is the most bizar thing)...
When i then run the following command: ip addr del xx.xx.xx.xx dev eth1 (where xx.xx.xx.xx is the ip of the testlaptop) and try to ping again from the remote machine then it seems to be working fine ... however only for a short time because then connection is lost somehow.
Sorry if this has already been solved;answered anywhere else - I tried looking it up but to no avail. The problem persists & the hints I found around the forum did not provide a solution to the case, neither other net solutions i looked up I run Winblows at the lab and sometimes take my Ubuntu PC with me. There is an open Wireless network where they set MAC permission, and there's no pwd to access. It so should be fairly easy to change m MAC and access it, right! No. I run ifconfig and macchange, successfully change my MAC addr BUT the connection drops! Then if I change it back (MAC to my original address) it goes back online. And yes, I shut down the service -- "ifconfig wlan0 down" and then up..WHAT ON EARTH am I doing wrong??? No webpages touch this 'trouble-frigging-shooting instance!
Running 2.6.29-gentoo-r1 on a Sun Ultrasparc 10 with a Sun Happy Meal on eth0 connected directly to my cable modem. Intermittently, with a frequency between a few hours and a few days, I lose internet connectivity. Running ifconfig eth0 indicates all is well and I have a valid IP address but I cannot even ping the cable modem's management address; pings to 127.0.0.1 and eth0's IP address do get a reply but no other address I've tried does. I can 'fix' the problem by issuing
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If I check the CM logs, it appears that it has rebooted itself prior to the loss of connectivity. The strange thing is that the incoming traffic doesn't seem to be affected by this, my PSAD log is full of incoming scans even during the periods when I can't connect to the net. I suspect this is an ISP problem (they own the CM);
I'm setting up a computer with xUbuntu installed and wan't to run it as a PPtP VPN server.
I'm using a mobile broadband for internet connection, with DynDNS wich updates the host with public IP-address.
I've managed to set up the connections and installed the needed packages. The problem appears when I connect to the VPN server through another computer;
When I get connected to the VPN server the remote computer recieves an IP-address from the server (xUbuntu) wich is great! But the server changes prefered network, from the mobile broadband to the wired network wich results in the remote computer losing it's connection to the server.
I am running Ubuntu 10.10, and I would like to use my computer to share the internet connection from an ethernet port. For example, I would like to set up my computer as a wireless access point so I can create a network that other computers can connect to for internet.
Its a case of ".... wireless network connection active but still not internet connection .."I am using WEP - 128 key ... Works when I connect directly using ethernet cable ... but not wireless (pci and wireless router)
I have two linux laptops. Currently, I'm using both of them at work, side-by-side. Now the problem is, I'm connected to a wireless router, but the wireless only works on one of the laptops. So I'm stuck with one laptop that has no access to the internet. Both machines do, however, have working ethernet nic cards. So, I was wondering if I could use the laptop with the wireless connection to share the internet connection with my other linux machine and access the internet on both of them. Or as an alternative, just use the internet on the machine without wireless and be able to switch back and forth, that would increase my productivity like 30 fold.
I took a snapshot of my machine with internet working
If I reboot my machine I lose internet. This makes no sense to me.
I ifconfig eth0 down then ifconfig eth0 up and still no internet
Weird thing
I check ifconfig and my bcast ID is 192.168.2.255 when it is supposed to be 192.168.45.255
(When the internet is working if I check ifconfig the bcast ID is 192.168.2.255)
IF I change my bcast my internet stops working
If I reboot my machine my internet stops working
I checked /etc/sysconfig/network-scripts/ifcfg-eth0 and I see that in my snapshot (where the internet is actually working) the bcast is at 192.168.2.255
Without rebooting if I edit that script and I put it to .45.255 my internet stops working
If I reboot my machine at any time my internet stops working
I have also just realized that I cannot ping my gateway..
I tried to install Xubuntu 10.10 Maverick as dual boot on my laptop. However when xubuntu is on, I can't find a way to connect to internet. When I try the 2 arrows on the up-right corner the option for wireless is deemed. I tried offline/online, that did not work either. when I click the firefox It says you are not connected.
I seem to have is trying to get the internet to work. I can go to ..... ect but when I try to run playonlinux it says you do not seem to be connected to the internet, please post if you have anything useful, as I said I am very new to linux so be as detailed as possible.
I'm not sure if it is the connection I'm losing or something else is happening and I just can't fathom it out.
I have set up Debian from netinstall. I installed openssh server and Apache. The server is connected to our local network with the IP address 192.168.0.51 and shares a physical port on a simple ethernet switch.
I can SSH into the server from Ubuntu but it takes around one minute to ask for a password and another 20 seconds or so to bring up the prompt. I have checked twice to make sure their are no conflicting IP addresses on the network (all static). The connection seems fine but if I am away from the secure shell for more than a couple of minutes or I minimize the terminal window I can no longer type anything at the remote machines prompt. Reconnection without restarting the server is impossible on most attempts and the terminal just hangs before the password prompt appears.
I have the same kind of issue with Apache. I can view Apaches test index.html using just the IP address from my browser but after a few minutes I get the 'connecting to 192.168.0.52' in the status bar and it never reconnects.
I have problem with my wireless GSM connection , my notebook has built-in Toshiba (in fact Ericsson) F5521gw wireless modem , it is detected and usable by default without installing additional software.Problem is that I can connect flawlessly only once after switching on notebookif I disconnect manually I'm not able to connect again, i have to reboot my computer or another solution which allows me to reconnect is closing and opening lid (putting notebook in suspended state)I'm using Toshiba Tecra r850, openSUSE 11.4 x64 on Gnome 2 DE, using NetworkManager and nm-applet /var/log/messages after using disconnect from nm-applet:
Code: Sep 8 17:04:39 linux-b5nl pppd[9933]: Terminating on signal 15 Sep 8 17:04:39 linux-b5nl pppd[9933]: Connect time 243.2 minutes.
I have a Zotac MAG HD N01 desktop computer hooked up to my 40" LCD Samsung TV in the living room. On this machine, I have Ubuntu 9.10 minimal installed, and the system is configured using the XCI script (a customization script to configure the system as an HTPC with XBMC).
Now, since the original install, I've tweak it a little, and one of the things I have it doing is its booting into a minimal desktop using the NODM login manager and it goes into OpenBox. Everything works fine and dandy, however, when I leave it for a while, it looses its connection and says "Searching for Signal" on my TV. I can remedy the situation by just hitting a key on the keyboard (Ctrl for example).
This also happens if i'm watching, say a flash video in a web browser for a while (like a hockey game), and all of a sudden, the screen cuts out.I've checked in the openbox configuration, and screensaver is turned off, but I can't seem to find where to configure any sort of power management. Is there a way to turn off the, what I can only assume, is a power management feature?
I have been using Open SUSE 10.3 for about a year now and have been very pleased. I am now trying Open SUSE 11, it seems good, loads a lot faster than 10.3 and seems to run a little faster. I have had a few probs but they have been resolved with help from these forums. But I have a big prob remaining and I have no idea what could cause it. For no apparent reason I will lose the connection to the net.It happens mostly when running aMule, it can be downloading fine for some while when suddenly the connection to the servers is lost and it won't reconnect, and then also I can not connect to the net with Google etc. The only way to solve it seems to be to shut down, wait awhile then reboot. It will be OK for a while then the problem re-occurs. There does not seem to be a problem with anything else on the system. I know that the Modem is OK as I have three HDD - 1 running Win XP, 2 - running Open Suse 10.3. 3 - running Open Suse 11 & the prob only occurs with SUSE 11, I do not get this problem with either of the other HDD. I have tried three versions of aMule, with SUSE 11,the one given on YAST - v2.2.2-0, & others from Packman v2.2.1-0, & vSVN, the problem occurs with each version so I think it must lie with SUSE 11. I have opened ports 4662 & 4672 on the firewall, & the setup I use is identical to the one on 10.3 which works faultlessly. I use a NTL Modem connected to the PC via Ethernet.
I have the "Work Offline" problem: when I boot up, the icon on the toolbar tells me I have "No network connection". This is not quite true, since I can access the first page of any website - only subsequent pages are inaccessible. I get a message saying that Firefox is offline. However, when I uncheck "Work Offline" in the File menu, it makes no difference to this behavior.
The problem is on my Ubuntu Dell desktop, which is connected to the internet with cable broadband via a D-Link router (wired connection). It has worked fine up till now. I use Ubuntu 10.04 and Firefox 3.6.11. I am writing this on my Ubuntu Dell laptop which is wired to the same router, so I assume the problem is not the router. I have tried various strategies suggested in threads on these forums, including editing about:config, changing "allow" to "deny" in some lines of /etc/dbus-1/system.d/NetworkManager.conf and changing from Automatic (DHCP) to Automatic (DHCP) Addresses only, but no luck so far. The contents of ifconfig are:
If I comment out "auto eth0" as well, it makes no difference. If I uncomment both lines ("auto eth0" and "iface eth0 inet dhcp") then I lose the internet connection altogether.
I have Ubuntu 10.10 installed. I am very new to Linux. I am having a problem connecting to wireless network when I reboot to Vista OS. When I am using Ubuntu, it works fine. I have to plug in the LAN cable in order to connect to internet. When I try to connect to wireless network, I don't see any networks at all. My WiFi switch is ON. I keep switching back and forth between Vista OS and Linux.Narendra
I keep losing my Internet Connection(DSL) very quickly. Usually after a couple of minutes, it's absolutely unpredictable. And then, it gets difficult to reconnect. And if I succeed in reconnecting, I again lose the connection quite quickly.
Here are some logs from the ifcfg-dsl0.log code...
I just want to use Internet Connection Sharing (ICS) to connect to the internet. I have done a massive amount of troubleshooting, but some of it seems to contradict itself, and the only two things that I know for sure are that it used to work, and that my Ethernet cable is not the problem. When I use Terminal utilities like ifup and dhclient it seems that it can not determine IP information, but when I try to put it in manually, the "Apply" button grays out right after I finish typing it in. When I try to connect normally, in KDE or GNOME, the icon acts like it's connecting, then instead of having the connected icon, I receive a notification that "the network has been disconnected", and it goes back to the disconnected icon.
Oh, and by the way, I know that I could probably find a workaround, but I have limited resources, and this used to work. The Linux is a Dell desktop with Fedora 12 and the Windows is a Windows 7 HP laptop.EDIT: I hope that I didn't mess something up, but I accidentally used system-network-config to try putting in the IP address there, and ended up changing it back to the original settings, but the computer is now calling it Auto Ethernet in the taskbar icon, although sudo iwconfig in the terminal still calls it eth0.
I have installed fedora 12 recently. after installation i tried to connect to the internet using BSNL broadband connection. I filled in the details such as IP, Netmask, Gateway and even DNS servers. In the services also I ensured that the network manager services is on. However even though my computer cannot connect to the internet. I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual.
There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
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I then tried the ping test of the modem from the address 192.168.1.1 and found that the ping test is successful. Then i tried the network administrator and there I noticed something unusual. There are two options in the devices eth0 and eth1 thats ok but the unusual; thing is that the Activate (green button), Deactivate (red button) and even the delete buttons are in the background and I cannot select them. Isthis the problem for the network connectivity.
I just installed Ubuntu 11.04 desktop on my desktop in dual boot with Windows 7.
Heres my problem, I am unable to connect to the Internet even though my wired Ethernet connection says it is connected normally. The wierd thing about this is that I also have a wireless card in my desktop and when I connect through that I am able to connect to the Internet. I am connecting to a router that is functioning as a repeater to my main router/cable modem. I have tried to solve this myself but am having no luck. Ironically, earlier today suddenly my ethernet connection worked for a few minutes without me modifying anything.
The output of some terminal commands are below.
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However a pint to that ip address (my router) is successful.
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Hosts.allow and hosts.deny are both fine (not blank but no entries)
