weird network issues

[Codekid]

hey guys, me again, forgive the newbie?
anyways, i've been using kubuntu for a few days now and i've been on the internet after installing the wifi driver and such, and internets been working fine. so i come home today and my network managers disabled, i can't access my internet or wifi options, wired or wireless, doesn't work. i tried uninstalling and reinstalling the driver and i can't figure out whats going on....help?

[Ole Juul]

Re: weird network issues

I haven't fooled much with wireless, but I'm fairly comfortable with wired. Anyway, to kick things off here, we need something to go on. Type "ifconfig" in a terminal and tell us what it says.

Also, somewhere on this forum is an excellent mini-how-to by member Detonate. Give that a boo.

Edit: That how-to is also a link in one of the best resources here. Member dibl has a link in his signature which goes like this.

[Detonate]

Re: weird network issues

Sometimes it is just a simple matter of rebooting your router.

[Codekid]

Re: weird network issues

link encap: local loopback
inet addr:127.0.0.1 mask:255.0.0.0
inet6 addr: ::1/128 scrope:host
up loopback running.

so basically my network card works, but i can't access any network, wired or wireless. and when i click on the network manager, it says network managent disabled, and i can't get it to turn back on/enable

[Detonate]

Re: weird network issues

I don't see your network card. Try

ifconfig -a

and post the results.

[Codekid]

Re: weird network issues

link encap:Ethernet (eth0)
broadcast multicast mtu:1500 metric: 1
rx packets: 0 errors: 0 dropped :0 overrun:0 frame:0
tx packets: 0 errors: 0 dropped:0 overrun:0 carriers:0
collisions: 0 txqeuelen:1000
rx bytes:0 (0.0 B) Tx bytes:0 (0.0 B)
interrupt: 16

link encap:Ethernet (Wlan0)
broadcast multicast mtu:1500 metric: 1
rx packets: 0 errors: 0 dropped :0 overrun:0 frame:0
tx packets: 0 errors: 0 dropped:0 overrun:0 carriers:0
collisions: 0 txqeuelen:1000
rx bytes:0 (0.0 B) Tx bytes:0 (0.0 B)
interrupt: 17 memory:f8000000-f8004000

[Detonate]

Re: weird network issues

Wlan0 is your wireless. It is present but not active.

eth0 is your wired connection, and it is also present but not active.

I can help you get the wire connection working, but I am out of my comfort zone with wireless. Do you want to try the wired connection? If so, once we get your connected, you could install a program called wicd which should handle your wireless problems. It is a replacement for network-manager that experience has shown to be much more reliable and less problematic.

[Codekid]

Re: weird network issues

sure, sounds awesome

[Detonate]

Re: weird network issues

OK. go to this thread and read the instructions very carefully. If you have any questions do not hesitate to ask.

http://kubuntuforums.net/forums/inde...opic=3100052.0

[Codekid]

Re: weird network issues

i followed the directions and got everything configured the way it stated, and when i went to restart the networking, it reports back on all ports and intervals "DHPCDISCOVER on eth0 to 255.255.255.255 port 67 interval *" and my network manager still won't start, it does have a message below those, they say "no DHCPOFFERS recieved. no working leases in persistent database - sleeping". thanks for all the help ^_^

[Detonate]

Re: weird network issues

Run in a terminal

cat /etc/network/interfaces

and post the results.

[Codekid]

Re: weird network issues

oh yeah, forgot to post lol, sorry about that, i got my ethernet working through the previous commands, it just says that my network manager is disabled no matter what, so i'm reading up on wicd right now. thank you very much for all your help

[Detonate]

Re: weird network issues

If you used my instructions, you don't have network-manger. You now are the network manager. Glad you got it working.

[davolc]

Re: weird network issues

Let me tell you what happen, Thats a bug in Kubuntu 10.04 hasn't fix yet.... and when you turn off your computer by force, Not doing a normal shutdown, The Network manager goes disable, I dont know why but its a bug, Normally happens when you put your computer in Hibernation, sleep mode or forced shutdown...

to fix it you have yo do in terminal

kdesu kate /var/lib/NetworkManager/NetworkManager.state

change WirelessEnabled=false to WirelessEnabled=true

then sudo restart network-manager

and done.


you can try this too

sudo sed -i s/false/true/ /var/lib/NetworkManager/NetworkManager.state
sudo restart network-manager

and DOOONEEE!!!!


READ THIS
https://bugs.launchpad.net/ubuntu/+bug/555571

[Ole Juul]

Re: weird network issues

davolc: Let me tell you what happen, That's a bug in Kubuntu 10.04 hasn't fix yet....

It also happens when you delete the network manager, which in turn will prevent you from changing it's configuration.
I think you missed reply #8.