strange network problems

muddle · n00b Joined: 01 May 2007 Posts: 31

hi,

maybe someone can help me with my networking problems.

after upgrading to kde-4.7.3 i cant get my network connection running. i have 2 network controllers on my board, but none of them shows up at the systray-icon (using networkmanager and networkmanagement). (if i move the mouse over the icon a bubble says: 'no network interfaces'.

anyway, the configuration of the interface seems to work (at least partly). the interfaces use the correct kernel driver and get an ip4 address from my router and i can ping some internet hosts. i even can ssh into the box. but if i try to get some data from the internet (e.g. emerge a new package, browse some homepage. emerge --sync also fails with timeout) the connection always times out.

i've tried various things to get the network running, including a 'reemerge -va --with-bdeps=y --noconfmem world' but nothing helped so far. (possibly i'm missing some package?)

many thanks in advance,
cri

some information from my system. please let me know, if you need further information.

lamarque · Posted: Wed Jan 11, 2012 11:52 pm Post subject:

Which Plasma NM and NetworkManager do you use?

What does the script below return?

for i in $(qdbus --system org.freedesktop.NetworkManager | grep /org/freedesktop/NetworkManager/Devices/) \
do\
qdbus --system org.freedesktop.NetworkManager $i org.freedesktop.NetworkManager.Device.Driver\
done
_________________
Lamarque V. Souza
http://www.geographicguide.com/brazil.htm
Linux User #57137 - http://counter.li.org

Hu · Administrator Joined: 06 Mar 2007 Posts: 23062

What device serves as the gateway to your network? If your edge device or your ISP mishandles PMTU discovery, you can experience the problems described. Small transfers work, but large transfers, such as emerge --sync or big package downloads, will fail.

Cyberwizzard · Apprentice Joined: 02 Apr 2004 Posts: 244 Location: Norway

Since the TS does not answer: I have the same problem. I resorted to manual wpa_supplicant configuration to get wifi working again.

Since my troubles began with a major system update, I'm not really sure what broke: NM got updated and KDE as well.

The output of the commands lamarque posted are (run by hand):

lamarque · Posted: Sun Feb 05, 2012 2:35 am Post subject:

I removed the file /etc/dbus-1/system.d/NetworkManager-kde4.conf in Plasma NM 0.8.99 and master branch (kde-misc/networkmanagement-9999) since it is not used anymore. The file was used with NetworkManager 0.8.x only. I do not see any reason why it works with 0.8.98 and not with -9999.
_________________
Lamarque V. Souza
http://www.geographicguide.com/brazil.htm
Linux User #57137 - http://counter.li.org