Ubuntu Networking :: At Times Desktop Computer Can't Establish Wired Connection?

Aug 3, 2011

My desktop computer, running 11.04 (fresh install) sometimes can't establish a wired Ethernet connection. Sometimes when I boot, it keeps trying to establish, but with no luck. I keep trying to choose "Auto eth0" from the networking menu, but still, it doesn't succeed. If I reboot, it sometimes works. I can't establish a connection about half the times that I boot.

The computer is connected with a cable to a router ("Belkin Wireless Pre-N router"), and the router is connected with a cable to a cable modem.I've been using Ubuntu for a while, and I've had a problem for the past few versions (since around 10.04)? I thought that it might be some old issue that got resolved, so I did a fresh install of 11.04 today, and still have the same behaviorI'm willing to try things next time I can't get a connection, but don't know what.

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Fedora Networking :: Unable To Establish Wired Connection - Dell Inspiron

Aug 22, 2010

I have an issue relating my broadband connection, which I am not able to solve. I hope and wish, that I would find some way out here.

Some introduction: I am using Dell Inspiron (i3 processor) laptop, which I recently bought. I have win 7 preinstalled in it. In win 7, the wired broadban connection (Airtel connection) is working fine and have no issues.

I have been using mobile GPRS(BSNL, Ltd) through bluetooth, and that have been working fine. But today when I tried to connect through landline connection, it didn't workout. But the bluetooth connection is still fine. When I tried to do the connection manually through Network Manager, it is not taking the MAC Address. Till now, after installation, I have not updated my OS.

I surfed the net and tried some commands, whose results I am posting below.

From a post I found out, that I should change my duplex settings (from 100 full to 10 full), but I could not get much. The corresponding commands and output,

I have posted below:

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Ubuntu Networking :: Wired Intermittent - Firefox Get "Loading" Until The Connection Times Out

Jan 4, 2011

I just installed 10.10 (2.6.35-24-generic) and my wired network connection is cutting out. I'm dual booting with Windows 7, and it works fine over there. I'm confident it's not a hardware issue. It works initially, but after a few minutes (this varies) the connection will drop out. If I'm on Firefox, I'll get "Loading" until the connection times out. If I'm using RDP to a local computer, I'll lose the connection. When it happens, if I ping a local computer, I'll get:

[Code]....

So I'm getting a bunch of packet loss. Some of the time, once the packets do start going through again, Firefox will finish loading the page. Other times, I have to click on network manager and click on "Auto eth0" which will give me the "connection established" message, and kick the network card back into gear. Sometimes I have to do this several times. It never shows as disconnected, but this somehow gets it going again.

[Code]...

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Ubuntu Networking :: SSH / Telnet Connection To Desktop Within LAN Times Out

Dec 16, 2010

Wrong prefix, its Ubuntu not Lubuntu. Three devices:

Laptop 1:
---Can ssh to any device.
---Accepts any internal ssh.

Desktop 1:
---Can ssh to any device.
---Accepts any internal ssh.

Desktop 2:
---Can ssh to any device.
---Can ssh to itself through localhost or 192.168.1.130.
---Any ssh(and telnet) aimed at this device times out.

All three devices recently had openssh-server installed yet only one seems deviant. I've been trying to ssh into desktop 2 to no avail, yes the machine is reachable, yes sshd is running, yes ufw is disabled, and no there is no external firewall that I know of. Anything else I can try? The router for the LAN being dd-wrt.

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Ubuntu :: IP Address Of Remote Computer To Establish SSH Connection

Jul 9, 2011

I want to transfer files from my laptop to my desktop remotely over the net. Both these computers access net via different service providers and have dynamically assigned IP addresses. If I know the IP address, I can use ssh to accomplish my task. However if I don't have physical access to the desktop, I cannot know the IP address. Is there a way by which a the desktop sends its public IP address to me so that I can establish ssh connection ?

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Ubuntu Networking :: Ethernet Lan Port On The Computer Seems To Not Be Activiating As No Wired Connection Is Recognized

Oct 6, 2010

while my brother was browsing the web on my windows partition he had a blue screen pop up, one of the soft/hardware error ones, not a true BSOD, anyways, ever since my lan port on the computer seems to not be activiating as no wired connection is recognized. The lan port/card is directly attached to the Mother Board, it's a gigabyte motherboard in a self-build computer. I'm just wondering if there's anything I can do to troubleshoot this and see if it is truly a hardware problem or if its something else.

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Ubuntu :: Unable To Establish Remote Desktop Connection

Oct 29, 2010

Getting an error while connecting to remote desktop using rdesktop.

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Networking :: Setup PPPoE Connection To Establish DSL Connection?

Apr 23, 2010

I'm trying to setup PPPoE connection to establish my DSL connection, but I got

Code:
pppoe[3885]: read (asyncReadFromPPP): Session 4479: Input/output error
pppd[4104]: Cannot determine ethernet address for proxy ARP
in my sylog file.

When I do pppoe-start, it connected but I cannot ping into any destination (even to my modem in the same network). DNS servers are explicitly set in pppoe.conf and resolv.conf. Did I miss anything?

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Ubuntu Networking :: 10.10 Won't Establish DSL Connection

Nov 24, 2010

What I have:

Computer: Dell XPS M1210
Modem: SpeedStream 51000 - It's SBCGlobal

I followed the pppoeconf setup instructions.

cracker@Jack:~$ sudo pppoeconf Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5

I then asked it to start the connection.

cracker@Jack:~$ sudo pon dsl-provider
Plugin rp-pppoe.so loaded.
RP-PPPoE plugin version 3.8p compiled against pppd 2.4.5

Checked connection information and got this.

cracker@Jack:~$ ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:18:8b:dd:6e:cb
inet6 addr: fe80::218:8bff:fedd:6ecb/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

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Ubuntu Networking :: Establish A Ssh Connection To Server?

Feb 15, 2010

I am trying to establish an ssh connection to my server. I have a regular ssh connection working through the command line, so I know my key works and I have the port forwarding on the router correct.

When I go to Places -> Connect to Server the window comes up properly. The only problem is that the drop down menu only has one option in it for Service Type. It is Custom Location. I have had this set up in the past and there were other options there. I chose the ssh connection and everything was fine. Now it doesn't work.

I have tried to completely uninstall nautilus and reinstall it, but that didn't work. When I did uninstall it, I uninstalled gnome-session as well, and I reinstalled that one too.

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Ubuntu Networking :: Wireless NW - Establish A Connection

Apr 3, 2011

I am trying to set up, I am having problems understanding what steps I need to take but have done the following on recommendation of help from linux forums but am not getting anywhere with what I have done. PC:

Laptop Dell latitude D610
Ubuntu Gnome 2.26.1

I currently have a wired connection to my laptop but am trying to set up wireless, I have put the antenna on the router and have a wireless network showing called NETGEAR, amongst others, which is my primary router name so i'm trying to connect to that but the actual wireless antenna is on the switching hub. For all intents and purposed assume I am a complete newbie with ubuntu and linux command line stuff, I know basics like pwd, ls and so on but need a good bit of help trying to do this. When I click on this wlan network NETGEAR I get asked for the password, on the bottom of the switching hub is a code for WLAN and I put this in, it then asks for a password for a default keyring, which I do not know. How do I find this out?

But I am still not sure what I am supposed to be doing or looking for to resolve this connection problem, not only am I not a network expert I have no knowledge of linux either and steps to follow to establish a connection.

[Code]....

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Ubuntu Networking :: Can't Establish Internet Connection

Jul 18, 2011

I'm using Ubuntu for almost two years and everything has worked well till now. One day I have reinstall ubuntu in my computer, but then something went wrong. I couldn't anymore establish my internet connection. I have tried everything but nothing helped. I even reinstall my ubuntu multiple times but there was no efekt. Even when I installed Kubuntu or an older Ubuntu 10.10, there was no internet. I'm also using Windows 7 but there is always a internet connection. I didn't change any hardware on my computer, only a new AMD graphic card. I'm using wired optical Internet 10/10 MB.

[Code].....

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Ubuntu Networking :: Router Too Far Away - Failed To Establish Connection

May 3, 2010

Dual boot Vista Basic and Ubuntu 10.04 on low spec PC. I can connect to the wireless when I am next to it. I move to the room where the computer is normally used and I lose connection. I can still see it but it fails to establish a connection. Okay, sounds like it's just too far way but when I re-boot and use Vista, it works fine (1 or 2 bars, but it works). Is this a driver issue? Anything I can do apart from move my wireless router?

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Ubuntu Networking :: Atheros AR9285 Not Able To Establish Connection

Feb 5, 2011

I am kind of new to linux and have installed the lucid lynx ubuntu distro (10.04) and then "upgraded" it to ubuntu studio but it still says is the lucid lynx. I got a Samsung Q430 laptop with the Atheros AR9285 wireless adapter.I have everything up and running EXCEPT my wireless card. The wireless card DOES work, it does see all the connections available, but when I choose to connect it does not, and keeps asking for the password.

Weird thing is that when I use my samsung galaxy tab as the wireless adapter for its 3G signal, it does seem to work fine (although really slow). I have tried looking for a solution, some say to just install the drivers, but ubuntu does not recognize anything to need a driver except the video card. I have installed linux-backports-modules-wireless-lucid-generic I have also tried the bleeding edge drivers.

After a while of experimenting by myself I came with the following, somewhat rudimentary. I managed to fix the problem by installing the windows wireless driver utility. Here is a tutorial on how to do it. So I just installed it, went to system/administration/windows wireless drivers and just installed it. Downloaded the file from here [URL]. It may not be the best way to fix it, but it does work. Still if you can use ethernet, don't hesitate to do it.

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Ubuntu Networking :: Lost Connection To Network Printer - Re-establish It?

Feb 12, 2011

I have had long term access to a networked HP Photosmart printer but now I get the following message:

Unable to open device hp:/net/Photosmart_C5100_series?ip=192.168.0.161.

when trying to access it.The ubuntu desktop is wired to the router as is the printer and another iMac wirelessly can still print to the HP. HPLIP status shows the icon for the printer but with a red x indicating no connection to it.The only recent network change was the removal of another router from our network. (service is DSL via a combo modem/router from service provider which previously was connected to a Dlink router which has now been removed from the chain b/c was redundant to the modem/router)

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Networking :: Cannot Establish A Wireless Network Connection From The Terminal In Ubuntu 10.10

Jan 27, 2011

I'm trying to connect to a hidden wireless network in ubuntu through the terminal but i am unable to do so.

I first tried using ifconfig,iwconfig and dhclient initially but i am only able to get an ip address without the default gateway and dns server addresses which i normally get through the network manager applet.

Then i tried using cnetworkmanager but failed miserably again i keep getting this error

Code:

Another applet is running: Bus name already exists: org.freedesktop.NetworkManagerUserSettings (pid 1851)

Then i used nmcli available with the network manager package. i was able to establish a connection only with the connections showed in the list. i use a hidden wireless network. i am unable to connect to the hidden wireless network using nmcli without actually creating a connection from the network manager applet.

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Networking :: PPPOE Connection Noesn`t Establish - Modem Hangup

Apr 22, 2010

I`m trying to establish pppoe connection from Linux clinet to Win server.

I get in ppp.log message:

As I see in this log server gets IP address to client but after connection terminates.

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Ubuntu :: No Wired Connection On Dell Inspiron 570 Desktop / Fix It?

May 1, 2010

I just bought a basic Dell Inspiron 570 Desktop, and installed Ubuntu 9.10, and found that the wired internet won't connect. I've checked the wire, and confirmed that an Ubuntu laptop can get a wired connection using it, but the new Inspiron doesn't do anything.

The "Network Connections" dialog shows a "Wired connection 1" item, but Network Manager refuses to connect to it. ifconfig only shows the lo interface.

How can I get this wired interface working? Please, this is very frustrating. I can only assume it's some sort of driver issue (which seems rare with the wired connection), but I can't even run an update since I don't have an internet connection.

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Networking :: Establish A Internet Connection At Fedora Latest Via Mobile Modem ?

Feb 18, 2011

I recently installed linux Fedora 14.... how do i have internet connection via my mobile modem...? i conect via usb

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Hardware :: Run Desktop PC With A Wireless Card Instead Of A Wired Connection?

Nov 5, 2010

Unfortunately, due to the layout of my new apartment I'm going to have to run my desktop PC with a wireless card instead of a wired connection.

Googling turns up a lot of out-of-date information on hardware compatibility for Linux and PC wireless cards. Could anyone provide a suggestion or two for known-good, 2.6-kernel compatible PC wireless cards?

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Ubuntu Networking :: Internet Not Connecting Unless Restart Computer Several Times?

Nov 19, 2010

I am having a problem with my internet connection. It only works half the time. Usually when i start the computer it doesn't connect until i restart anywhere from 1 - 10 times. I did sudo ifconfig while it was not working here is the output:

eth0 Link encap:Ethernet HWaddr 00:19:d1:00:36:41
inet6 addr: fe80::219:d1ff:fe00:3641/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:11 errors:0 dropped:0 overruns:0 frame:0

[Code]...

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Ubuntu Networking :: LAN - Connect Using DC++ But Connection Just Continuously Times Out

Feb 20, 2010

I recently started attending University and there is a filesharing hub set up throughout the dorms. I want to connect to it using LinuxDC++ but the connection just continuously times out. I have used DC++ before on Windows and never had any troubles so I am thinking it is something to do with networking in Linux (I have only been using Ubuntu for about a month).

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Ubuntu Networking :: Connection Times Out Loading Certain Sites

May 17, 2011

I had recently installed Ubuntu 11.04 (64-bit) and I have trouble loading websites. I use a DSL (PPPoE) connection from NetworkManager to connect to the internet. Some sites like this forum site, stack overflow, etc. do not load. Firefox 4 says 'loading...' and then finally times out. I can ping these sites though.

I tried 'wget stackoverflow.com' and Lynx both timed out. wget sends out a request and waits a long time for response before timing out. These sites load perfectly well on my Fedora 14 (64-bit) & Windows XP installations and both these OSes have Firefox 4. From this I assumed that this is not a problem with Firefox (or any other browser for that matter) but it has got something to do with the network configuration.

I faced the same problem with Ubuntu 10.04 too. I use a Dell Inspiron N5010.

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CentOS 5 Networking :: SSH Either Times Out Or Refuses Connection

Apr 2, 2009

I'm trying to setup a ssh connection from to my house that way I can learn Linux on a box that won't make my boss the sys admin (Im help desk) grind his teeth. He say that ssh port is allowing connections out of the firewall but not in so I can connect to my house. However If I try to connect to my box I get a message stating that the connection has time out. I have port forwarded the 22 to my box and have even changed the port to see if it is my isp blocking me. I am able to connect via SSH internally but when I try outside my house I am running into trouble. I looked up how to disable my fire wall and as far as I know it is.

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Ubuntu Networking :: When Wired Remove The Computer Freezed?

Jun 26, 2010

i just installed ubuntu netbook in my hp mini and everything is ok, wireless wasnt working but a quick search in this forum solved the problem.But now if i'm connected wired and disconnect the wire (to see if the wireless connects automaticly) the computer freeze, is there any solution for this?And if i am connected wireless and disconnect and then plug in the cable the computer just doesnt recognized it stay offline, is there any icon i should click or something, so the pc could know that i wanna go wired?

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Ubuntu Networking :: Wired Networking - Connection Works But No Internet

Jun 1, 2011

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.

Quote:

Quote:

Quote:

However a pint to that ip address (my router) is successful.

Quote:

Hosts.allow and hosts.deny are both fine (not blank but no entries)

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Networking :: Connect To A Windows Computer Via A Wired Network?

Feb 15, 2011

cannot connect to my window computer using open SuSe

I am attempting to connect to my Windows Computer via a wired network on a sky router. When I tried with PClinuxOS it configured automatically. With the latest version of open SuSe 13.1this is quite a bit different. I have got as far as the network being auto and active with an Icon showing on the taskbar. However when I click on the Windows network Icon SuSe tyies to locate my Computer but then comes back with " failed to reteive share list from server. This is as far as I can get after several hours of trying.

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Ubuntu Networking :: 9.10 - No Wired Connection (Now Offline)

Jan 22, 2010

I have two PCs one has Windows XP the other has Ubuntu 9.10 on it, the Windows PC has no problems getting on the Internet (I'm posting this with it) and getting an IP address from the wired router. The wired router I have is ONLY wired it does not have wireless at all, it is currently setup to hand out IP addresses between 192.168.1.2 and 192.168.1.254.

The Ubunutu 9.10 PC worked great last night surfed all over the place for hours, then finally shut it down last night when I went to bed, shut down appeared to be normal like it always does when it shuts down, then this morning when I booted it up it gave error: "WIRED NETWORK - disconnected you are now offline".

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Ubuntu Networking :: 802.1X Authentication For LAN (wired Connection)

Mar 15, 2010

I am using ubuntu in my new office, and I can't get the network working. The "official" OS installed was a Windows, and it has a special "dial-up" app for the LAN connection (not wireless). My network admin is apparently not helpful, since he actually knows nothing about the internals for the "dial-up" app (he did not even ever heard of TTLS, PEAP, MD5, etc), and claimed that no OS except for Windows can work...

Well, I have tested various configurations with my Mac laptop, and apparently the LAN connection requires 802.1X authentication, and it's using a very weird combination "TTLS+PEAP+MD5" (if I check these options in Mac OS X, the connection works). However, in NetworkManager, I can't select both TTLS and PEAP, and moreover, TTLS does not work with MD5. So, is there anything I could try?

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Ubuntu Networking :: No Connections Tab - No Wired Connection ?

May 17, 2010

Fresh install of UbuntuStudio 10.04. This is really bizarre.

I can't seem to connect to the wired connection mainly because there is no connections tab (pic attached).

Here's some printouts:

dmesg:

Code:

lshw -C network:

Code:

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