Networking :: Ethernet Connection Only Work When Restart/boot Up Computer
Feb 23, 2011
I'm currently running Fedora 13, after I updated the kernel to 2.6.34, I have to run (as a superuser) "service NetworkManager start" in order to start my network manager, is there are way I can run this on startup?
Also my ethernet connection seems to only work when I restart/boot up my computer, when I wake my computer up from being asleep, the ethernet stops working.
Following upgrading my 09.04 partition to 09.10 then 10.04, all was working fine until I tried hibernate out for the first time - big mistake! If I can get to a position where i can log on to the system, I find that my ethernet network connection is disabled and I cannot get it to restart. My 09.10 system still works ok. I am tempted to do a clean install of 10.04, even though I'll have to spend some time reloading the extra's and re-configuring.
Just noticed that auto connection to my wired ethernet is not being established after restarts I'm making. Never recall this in the past. I do get an auto connect when I shutdown and restart. I'm using 10.04 LTS Lucid Lynx.
Also have noticed that nearly every upgrade over the past week or so is calling for restart to complete the upgrade. Can there be any unwanted problems in doing several upgrades over a period of several days before doing the restart? I'd like to think not.
As you can imagine these two issues together are causing some lost time.
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.
I have a HP Mini running Ubuntu Desktop 10.04, and I cannot get a wired connection to work. My network card is "Broadcom Corporation BCM4312 802.11b/g (rev 01)", and I have the restricted drivers for the card installed. Wireless works fine, though.
I have installed Ubuntu 11.04 using Wubi through Windows 7. It seems to be working but it will not connect to my wired internet connection. It tells me there is no wired connection, when there is. I used sysinfo and its not showing any network adapter or controller. I have a board with nvidia nforce go 430, could it be a driver issue. It works fine in windows though. Tried using a wireless adapter and all is working. But why doesn't the wired ethernet connection work.
I installed UBUNTU 10.10 alongside windows 7. Now the problem is: If i boot into UBUNTU first, ethernet does not work. But it works if i boot windows first and restart back into UBUNTU. Which means i have to boot windows first to make ethernet work on UBUNTU every time i start my PC.
If I uncheck and recheck "Enable Networking" in the Network Manager Applet 0.7.996 I would expect the wired network to disconnect (which it does) and reconnect (which it does NOT). So I tried sudo ifdown eth0 and got
Quote:
Ignoring unknown interface eth0=eth0.
ifconfig tells me
Quote:
eth0 Link encap:Ethernet HWaddr 00:25:64:e8:18:2c inet addr:192.168.0.112 Bcast:192.168.0.255 Mask:255.255.255.0 inet6 addr: fe80::225:64ff:fee8:182c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
[code]....
so I am at a loss. How do I stop and restart the network interface short of rebooting the machine?
I upgraded to the newest version of Ubuntu a few months ago, and ever since then, the ethernet connection to my router stops working when I restart the machine. It eventually comes back, but after varying amounts of time. Sometimes 20 minutes, sometimes 2 days.
Restarting the computer and cycled reboots of the router don't seem to have any beneficial effect, at least that I can detect.
The light for the slot on the router does not light up like it normally would, so it's almost like the OS doesn't even recognize the network card.
I have a Dell desk top PC, running WinXP and Ubuntu 10.04 LTS with a Ge-Force FX 5200 video card. In trying to get both monitors to work properly I thought it would help to reinstall Nvidia binary X.Org driver V173. After I removed the driver I tried to restart the computer with Umbuntu, it hangs up at the Ubuntu logo. I can boot with the live disk, I also tried to reinstall the Nvidia driver But the machine still will not boot from the hard drive, it will boot into Win XP normally.hould I just reinstall Ubuntu or fix the problem I created? My skills working in Terminal are minimal
I have a computer that I use for practically everything. In the same room I have a second computer that I use purely for trialing Linux distributions, It currently has Debian, gNewSense and Kubuntu on it with Grub to choose between. This computer has no keyboard / mouse / monitor, but it has directly wired ethernet to the home network. Is there any way I can set it to be remotely controlled from before / during grub so I can choose from the other computer which to run? I realise I can just crawl behind the desk and unplug the keyboard / mouse / monitor, but I don't particularly want to every time I reboot into a different distro. I also realise that remote access during boot is a security risk so is there a way of allowing only one MAC address to do the controlling?
I wanted to split adsl line, but a friend of mine explained that this isn't possible.. So now my question is that can you somehow switch ethernet back to dsl or have a computer convert it so that nothing has to be done to the other modem.
how to use a ethernet conenction(Marvell Yukon 88E8039 PCI-E Fast Ethernet Controller )in ubuntu...my internet requires user name and password ..can u even tell me how to config the user name and password
I installed 10.04 today, and I can't get any connection through the LAN. I've tried some stuff on my own, but I've been unsuccessful so far. It's not a hardware or connection issue, as it works perfectly fine in Windows 7. I haven't had this issue in any previous version of Ubuntu (or any Linux distro for that matter).The weirdest part is I booted from the installation CD as as LiveCD, and everything worked perfectly fine. It only stops working after I actually install it. Here's the results of ifconfig:
eth0 Link encap:Ethernet HWaddr 00:17:31:d8:d5:76 inet6 addr: fe80::217:31ff:fed8:d576/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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:
i shut down my ubuntu karmic for a bit. turned it back on after an hour or so and now i have no network connection. i checked all the obvious things like cords etc wife's computer is connected through the same router / modem and no probs here.i even replaced the card in mine.
I just upgraded to 10.04. I had wireless connection for 1 day and now nothing. No ethernet connection either. I CAN use both wireless and ethernet using my machine on Windows.....so the connection stuff does work. Here's the output of of the commands I got from the "sticky". I can't display the output as this forum puts it all together as one continuous sentence with no line break!
I'm trying to set up a shared Internet connection that had been broken by a previous update, I believe. Eth0 is connected to the Internet, whereas eth2 should be the connection going to my Roku set-top box. Under the nm-applet icon, an entry exists for "Auto eth0" for the first card, but there is nothing under the second card except "disconnected". How do I make a connection entry under my eth2 card so that I can share my Internet connection with my Roku box?
When I start my Ubuntu machine, it says "eth0 connection established". But i could not able to ping to other machines available in LAN & also to Internet.
My program is working. However, I would like to add in some features. Let see my code first
Code:
if (returnresult<=0) { printf("Connecting.... ");
[code]....
When the ethernet network connected, it will go into the else loop at line no. 13. The system will send status and display the status at control panel screen. If at this point, the ethernet disconnected, it will go back to the if loop at line 1. The system will keep trying to connect to the network and keep loop the if loop until it is connected.
Question now is I need the system to test the connection too after going into the operation loop that is start from the line no. 47. If the system went into the for (int c=0;c<cCOL;c++), it will need to do all the operations as indicated by cCOL times before it exit that loop and go into the previous loop.
I need the system to detect connection everytime an operation is going to happen or ended and if there is no connection, it will trying to connect. Before it is connected, it will not continue the operations. I tried to put the function "Connect (szPort, szAddress)" into each loop. Yes, the operation stop everytime the network disconnected. However, it shows on control panel screen "New Connection...." everytime it execute the statement. In fact, the network never disconnected.
I tried to look at the Connect function code, it is as below, I cannot figure out any statement that can stop the appearance of that "New Connection...". It may be hidden at the library source code, it is too hard for a beginner to modify the library code.
Code:
int Connect (char *szPort, char *szAddress) { /* Set the remote port */ int port; /* port number */
OS: Linux Mint 10 | Windows 7 Install Type: WUBI inside windows 7 Computer: HP Compaq Presario CQ56' Network: Realtek PCIe FE Family controller w/ Realtek 8102E chipset Problem in: Network Connection Issue: After I woke up my computer from Sleep, I lost ethernet. No connection. It told me that I had lost my connection. Why? Now, after several restarts, nothing.
i've just got a new broadband/wireless connection from Virgin Media and am trying to get this very old laptop online. in the past, cable connections have been easy, and wireless has given issues, but this time its the opposite. so, i have a new cable connection that is all plugged in. called customer support, they have no support for linux as usual, but they 'manually activated' the modem and thats all they can do. i am not trying to setup the wireless network yet, i'll do that with a pc later, for now i just want to plug in and go. on Network Settings, i have set the wired connection to dhcp. thats what i've done before ... not sure if i need to get static addresses from the ISP? i can go online now using the erratic but generous neighborhood free wireless.
I have a Sun server that could be only configured via serial interface. It has one serial port with a RJ 45 connector. Although my laptop has not serial interface. Is there a way to use C-Kermit or any software to establish a serial connection via the ethernet port. It should be some kind of virtual serial port that should transmit the information over the ethernet port, without encapsulating it in ethernet frames.
it is possible to tap off your phone lines with ethernet connectors. As an example. I take a phone jack in the bedroom, I splice off the line of the phone and insert an RJ45 connector along with the phone connector. Hopefully the line will be 4 wire. I can't imagine it would work with only 2 wire. I don't know for sure. Would that work?
My thoughts are the problems with the entire phone line connections. I know the phone line runs out of the house. Would it not work because of that when I attach a switch to it? If anyone has accomplished this or tried to, I would like to know. I'm guessing that the house would have to be pre-wired with CAT-5 because of collisions that can occur.
I'm trying to connect my newly installed CentOs 5.5 to the network. But although there is a cable connection that has worked well before with other distributions, the network configuration keeps telling me:"Determining IP information for eth0... failed; no link present. Check cable?"Here are the results of the /.getinfo network script:This is a university network that is working well for thousands of students, so the problem is not on the side of the network or the DHCP server.The wireless card is also not shown in the network configuration.
I just fresh installed Fedora 11, and tried to connect via ethernet. I connected the cable and connection was started (in the network managed the two gray circled turned green) but then instead of connecting me the connection was aborted. I am behind a router if it helps and made sure eth0 is enabled. PS this is the output of "service network start":
Quote:
[root@Gal-PC subsys]# service network start Bringing up loopback interface: [ OK ] Bringing up interface eth0:
I just installed 10.04 on my new netbook and I am suprised to see that the ethernet is not recognized. When I run
Code:
ifconfig eth0
the result is
Code:
no such device
The machine was working fine before I installed Ubuntu. I am suprised to see this problem as I have already installed it on a few machines without any problem such as this.
I am trying to run a cable from my wireless router over a 75ft cat6 cable to my bedroom. I don't get any connection on my end and I don't have any other ideas. I did setup a m0n0wall box just to try. I got the network led on my server to light up in my room but nothing more than that. Lastly, I tried adding a 5 port switch in my room and then connecting that to my server and nada.