Ubuntu :: Network Connection Configuration 10.04?

Jul 23, 2010

I guess this should come under the title "why can't they leave well enough alone?" Today I had occasion to configure a couple of machines with static IP addresses for some testing. My 8.04 machine - no problem. Invoke network-admin, unlock (with sudo credentials), set the desired IP, netmask and gateway. It is good to go. On the 10.04 box I did the following:

Right clicked on the network icon in the notification area (nm-connection-editor) - I see Auto eth0 (last used, never). So what have I been using for connectivity since I installed 10.04???

I then select Auto eth0 and press [Edit]. Under the IPv4 Settings tab I change "Method" Manual and enter my settings. However, I cannot Apply the changes - the [Apply] button is grayed out. So I try the same thing via the menu System; Preferences; Network Connections - same problem the [Apply] button is grayed out. So then I create a desktop icon to "gksu nm-connection-editor". Now I can Apply my changes and perform my testing. Then it is time to set things back to DHCP. Should be simple.

I invoke "gksu nm-connection-editor" from my icon. Change Auto eth0 back to Method: Automatic (DHCP). Apply and the network icon appears to restart. But I have no Internet connectivity.

I can reach my router. I can reach my DSL modem. The connection to the Internet is still working on other PCs. In frustration I reboot the 10.04 box. I still cannot access the Internet. And the Auto eth0 interface shows never used.

I change Method: to Automatic (DHCP) Addresses only and enter my DNS servers for Opendns.org. Reboot and I am now able to connect to the Internet. Remove the DNS addresses and no connection. I did NOT have these specified in the network connection setup before changing to/from a static IP address.

While doing all this it seems that a new network connection "Wired network1" was created although it shows never used. I delete it, no change. I delete Auto eth0 and reboot. Now another new network connection "Auto Ethernet" appears and I can connect to the Internet without having the specify the DNS addresses in the network connections configuration. Interestingly this connection shows Last Used - now! Also after removing Auto eth0 and trying to Apply changes I am prompted for my password when I click the [Apply] button (starting the applet from the notifier icon, not my gksu launcher).

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1 linksys router: gets the net from PPPOE and give the network DHCP. The router IP is 192.168.1.1. 1 windows laptop that work wireless and wired. 1 debian desktop that work wired and not working wireless. THe problem with the debian desktop is like this: I have a TP-Link TL-WN321G installed and found by lsusb command. I make a wireless connection WPA Personal (just like the router settings) it says i am connected to the wl network but no internet connection. the route command give me this:

[code]....

I tryed with wicd who said that the connection is WEP (and it's not, it is setup to WPA on the router and the network-manager conncetion) and when i try to connect i get bad password. I tryed with network-manager uninstalled and no chance.

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Jul 5, 2011

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We are having an issue where our network connection is dropping on our server. Everything was working for about a month without issues then suddenly we experienced a network outage. Here is what I found in our logs. Rebooting the machine was the only way to have everything come up.

Oct 16 09:20:59 server2 kernel: [2612816.936085] ------------[ cut here ]------------
Oct 16 09:20:59 server2 kernel: [2612816.936101] WARNING: at /build/linux-FpPMO6/linux-3.2.54/net/sched/sch_generic.c:256 dev_watchdog+0xf2/0x151()
Oct 16 09:20:59 server2 kernel: [2612816.936106] Hardware name: ProLiant DL380p Gen8
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[Code] ....

We have the same exact server, running the same exact debian version for over a year with no issues.

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Oct 9, 2015

I have Debian 8.2 with KDE 4.14 and everything runs perfect, except for the internet connection. This problem happens randomly when I turn on my machine. Sometimes when the desktop loads, the connection is already settled.

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Code: Select all01:00.0 Network controller: Intel Corporation Centrino Wireless-N 130 (rev 34)

This is the problem:

I installed Debian with non-free firmware because of this chip.

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What I'm trying to accomplish:Connect wifi enabled thermometer to WiFi network so it can automatically send temp updates (currently I have to do it manually via USB)Have the Wheezy box accept the downloaded file then send it to a back up server in the wired network

Side things that may be useful : Prefer to use wired connection for internet and apt and suchWiFi connection will really just be used for connecting to the thermometer

This [URL] .... topic got me thinking that there might be a way to bring the two networks together, but I don't know if that will wreak havoc on things. I know, the Windows and Mac OS don't like having ethernet and wifi at the same time, might Linux be better for this?

v&n had this to offer in the prior thread [URL] .... which I'll be doing more research on.

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ubuadmin@ubucomputer:~$ ifconfig

wlan0 Link encap:Ethernet HWaddr 00:06:25:12:83:3b
inet addr:192.168.1.10 Bcast:192.168.1.255 Mask:255.255.255.0
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Code:
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inet addr:141.213.169.76 P-t-P:141.213.169.76 Mask:255.255.255.255
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Port 22
Connection Type SSH

This is error: "Network Error: Software caused connection abort"

In computer with windows, i can ping computer with ubuntu and in computer with ubuntu i can ping computer with windows.

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Nov 17, 2010

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Oct 12, 2009

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I am not quite sure what Information you might need from me to give.

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Oct 31, 2010

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eth0
Link encap:Ethernet HWaddr 001:aa0:91:a7:51
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets: 0 errors: 0 dropped: 0 overruns: 0 carrier: 0
collisons: 0 txqueulen: 1000
RX bytes: 0 (0.0 B) TX bytes: 0 (0.0 B)
[Code]...

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Feb 1, 2010

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I have tried to configure a connection with YAST as well as with Network Manager, but both cases failled. Specifically, when I use Network manager, Im able to see in the applet my connection, how strong is the signal, but I see a yellow symbol (in one forum, such a box is shown with a green symbol).

I have check many time all about the secutity, encryption, and so one and all seems to be correct. But when I open the mozila firefox or the konqueror browser, no chance to surffer in internet. Now Im just a step to become crazy. The drivers are ok, the information about the router and the keys are ok, but in such a way, I am still harmloss.

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Sep 27, 2010

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May 16, 2011

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1. It did not change at all between being at 100% and being at 0% after reboot.
2. I was able to get returns from the modem, past the router, for a brief period of time while using the defunct ethernet port.

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As i did a network restart, i get this error saying :

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[URL] ....

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