Public bug reported:
Binary package hint: network-manager
I was using Intrepid Beta, and wired & wireless networking used to work fine.
After (failed) resurrection from hibernation (don't know if it has something to
do, but it just might), networking is a mess.
* The wired connection, which has a fixed IP, is reported disconnected
by NM, but is reported correct by ifconfig.
* The network parameters shown by NM for eth0 are funny: the address is
OK and the setting is reported "manual", which is right, but no DNS
entry is shown, and the mask is set to "24" instead of "192.168.0.255"
as shown by ifconfig.
* Edition of these parameters in NM fails after the "accept" button with the
message dialog:
"failed updating connection: nm-ifupdown-connection.c:82 - connection update
not supported (read only).."
* resolv.conf has been wiped out, and now only contains the message "#
Generated by NetworkManager". Adding the line "nameserver 192.168.0.1"
makes the web visible again, although NetworkManager still considers the
network unavailable.
* If wireless is activated, a link is established with the router, and
resolv.conf is wiped again and replaced with something that works. Going
back to wired blanks resolv.conf again.
* uninstalling NM, wiping its traces and reinstalling does not fix the
problem. (maybe there are more traces left than I wiped out)
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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NetworkManager messes up DNS and wired network options
https://bugs.launchpad.net/bugs/279867
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