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Old 08-11-2009, 10:59 PM   #1
dhruva_scd
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Network Manager is not working in ubuntu 9.04


Hey guyz ,

I hav installed jaunty on my desktop. Earlier i was using ubuntu 7.10 & the network manager was fine & working smoothly. In jaunty after surfing for more than 3 hours ... suddenly my network manager crashes out. The applet is showing CROSS. I hav done everything on it ....but nothing seems to be correct. Everytime i set the settings of wired network, it just vanishes.

There are 2 things :

1) After completing the ipv4 settings in the wired networks tab and also applying tick to the check box for "Available to All Users". The next time when i double clicks the applet ....the settings were gone.

2) If i ignore the check box & clicks on the Apply button. Nxt time it will show the wired connection1 ...but it also shows NEVER .

Help me ..... as the network manager is working fine in my Windows XP & Puppy Linux
 
Old 08-12-2009, 12:48 AM   #2
KapilSatav
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go to the services and
disable NetworkManager
and enable network services
 
Old 08-12-2009, 05:32 AM   #3
jschiwal
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Often when a program or process crashes, there is a stale pid file left behind. When you try restarting it, it thinks another instance is running.

Log out of Gnome and log into one of the virtual terminals. Then delete the contents of /tmp. Then reboot.

If there was a failure that caused networkmanager to fail, you may need to discover what it is if it persists. For example, I had the onboard NIC fail on my old laptop. Look in your logs and see if there was a Network Manager message or a kernel message at the time of the failure.

A general fix is to reconfigure your network devices. This might remove any harmful changes you may have made since the failure.

If you don't have wireless, using network manager is kind of pointless, unless you have different network profiles, such as you might with a laptop you take home with you, and one location doesn't use DHCP.
 
Old 08-13-2009, 06:57 AM   #4
dhruva_scd
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@ KapilSatav

bro it didn't work

@ jschiwal

i cant understand what u r telling. But yes I don't have any wireless connection & for using internet i have to setup my eth0 by static ip address & then i use pppoe to connect to the internet
 
Old 08-14-2009, 11:43 AM   #5
jschiwal
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My bad. PID files are in /var/run. A service used by NetworkManager may have a stale .pid file, left behind when it crashed. This can prevent a service from starting because the old pid file says that another instance is already running. Rebooting may clear them out.

Run "tail -f /var/log/messages" while trying to connect. NetworkManager sends messages to the kernel log. In another console, run "dbus-monitor" at the same time. NetworkManager communicates via dbus.
 
Old 08-17-2009, 12:50 AM   #6
dhruva_scd
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Quote:
Originally Posted by jschiwal View Post
My bad. PID files are in /var/run. A service used by NetworkManager may have a stale .pid file, left behind when it crashed. This can prevent a service from starting because the old pid file says that another instance is already running. Rebooting may clear them out.

Run "tail -f /var/log/messages" while trying to connect. NetworkManager sends messages to the kernel log. In another console, run "dbus-monitor" at the same time. NetworkManager communicates via dbus.

I have used all the things .....but none of them is giving me result. Even after stopping & starting the service of NetworkManager is not helpful. The irritating part is .... watever i do everytime that creepy CROSS sign was there.

Is there no way i can install the NetworkManager from the CD again ?
 
  


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