[SOLVED] all 2 minutes a connectionproblem on kubuntu 9.04

[Mentos]

Hello guys,
Several weeks ago i switched from windows to linux (Kubuntu 9.04). Its wonderful, but i have a big Problem.
In Teeworlds i have all two minutes a "connection Problem" on my screen, time is around 3 seconds. I tried to ping google, heres the same problem: 2 minutes its all fine, then comes a connection-problem, and for around two pings theres a 2000-delay. Then theres no problem for two minutes, again. Ah, and i can tell, on windows it works all fine.

thx for help, mentos

[flarson]

Re: all 2 minutes a connectionproblem on kubuntu 9.04

This sounds like a problem in the network configuration. You can see such problems if 2 machines have the same IP address, or if your ethernet connection has autonegotiated incorrectly, or probably for other reasons. The first to check would be to make sure your IP address is not the same as another computer on your network. You should run ifconfig and look for RX or TX errors. There should be none. If there is it might mean that your network card is trying no autonegitiating well with your switch/router/modem or whatever you are connecting to. In that case you might want to use ethtool to see if you can fix it.

In any case this is a network problem and to really understand it we need to know what network cards you have, what you are connecting to, and how you are configuring your network. To find the hardware run

lspci

and post the output. The run

ifconfig

and post the output. Do use network-manager, ifupdown, or wicd to configure the network? Are you connecting to a DSL modem or a hub/switch and are there other computers on the network? Are you using DHCP?

[Mentos]

Re: all 2 minutes a connectionproblem on kubuntu 9.04

okay sry, i am an newbie who doesnt understand that much about kubuntu
the ifconfig:

eth0   Link encap:Ethernet Hardware Adresse 00:21:85:0e:bd:22
     UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
     RX packets:0 errors:0 dropped:0 overruns:0 frame:0
     TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
     Kollisionen:0 Sendewarteschlangenlänge:1000
     RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
     Speicher:fdfc0000-fdfe0000

lo    Link encap:Lokale Schleife
     inet Adresse:127.0.0.1 Maske:255.0.0.0
     inet6-Adresse: ::1/128 Gültigkeitsbereich:Maschine
     UP LOOPBACK RUNNING MTU:16436 Metrik:1
     RX packets:4288 errors:0 dropped:0 overruns:0 frame:0
     TX packets:4288 errors:0 dropped:0 overruns:0 carrier:0
     Kollisionen:0 Sendewarteschlangenlänge:0
     RX bytes:168795 (168.7 KB) TX bytes:168795 (168.7 KB)

ra0    Link encap:Ethernet Hardware Adresse 00:15:af:b8:c4:31
     inet Adresse:192.168.2.103 Bcast:192.168.2.255 Maske:255.255.255.0
     inet6-Adresse: fe80::215:afff:feb8:c431/64 Gültigkeitsbereich:Verbindung
     UP BROADCAST RUNNING MULTICAST MTU:1500 Metrik:1
     RX packets:428746 errors:0 dropped:0 overruns:0 frame:0
     TX packets:226498 errors:0 dropped:0 overruns:0 carrier:0
     Kollisionen:0 Sendewarteschlangenlänge:1000
     RX bytes:82791211 (82.7 MB) TX bytes:20965948 (20.9 MB)

the lspci:

00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 02)                                    
00:01.0 PCI bridge: Intel Corporation 82G33/G31/P35/P31 Express PCI Express Root Port (rev 02)                                 
00:19.0 Ethernet controller: Intel Corporation 82562V-2 10/100 Network Connection (rev 02)                                   
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)                                 
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)                                 
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)                                 
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)                                 
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)                                    
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)                                 
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)                                 
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)                                 
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)                                 
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev 92)         
00:1f.0 ISA bridge: Intel Corporation 82801IH (ICH9DH) LPC Interface Controller (rev 02)                                    
00:1f.2 SATA controller: Intel Corporation 82801IR/IO/IH (ICH9R/DO/DH) 6 port SATA AHCI Controller (rev 02)                           
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02) 
01:00.0 VGA compatible controller: nVidia Corporation Device 0644 (rev a1)   
02:01.0 Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast Decoder (rev d1)                         
02:02.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller (rev c0)

Hmm i think this is the network manager. Its a button in my control bar, and it says "network management".
I am connected via WLan to a DSL-Router, but on windows its all fine so i dont think the hardware is broken.
Yes, there are other computers in the local network, but its not important if they are switched on or off, this problem is always here.
DHCP, i dont know what it is, but ive looked on wikipedia, so i think i used it, because i only typed in the WEP-Key, and then it was connected.

thx anyways to all hackers out there who are reading this

[flarson]

Re: all 2 minutes a connectionproblem on kubuntu 9.04

It appears you have an Intel ethernet card that is not being used and a non-pci wifi connection that is in use. That probably obtained the ip address 192.168.2.103 from the DHCP server in your DSL modem and it is unlikely that you would have an address conflict, although you might if another computer has been assigned a static address of 192.168.2.103. The wireless interface show plenty of transmitted and received packets and no errors.

I don't remember what device gets an interface ra0, maybe a realtek wifi? lsusb would probably tell you. At this point I would probably install wicd. There have been so many weird problems with KDE4 and network-manager that I tend to suspect it. I can't see anything else that is wrong. I suggest you run

sudo aptitude install wicd

, find wicd in K->Applications-> Internet and configure it, and see if your problem does not go away. This will cause network-manager to be uninstalled, so don't be surprised by that.

[Mentos]

Re: all 2 minutes a connectionproblem on kubuntu 9.04

Wohooo thank you so much! It works wonderful, you are my hero
I have searched for two months and couldnot find anything,
Now i can finally use kubuntu instead of vista for all things i want to^^

Mentos

ah, yes and... thx again