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I have one wire that goes to my laptop. I can connect local network and adsl internet in Windows simultaneously. I created adsl-connection and it works well (I can browse Internet). But I can't connect to local network (ie. announcement site in our campus, that is hosted on

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"A wire that goes to your laptop" Presumably an ethernet cable that has a router on the other end? Also, what version of Ubuntu are you using? And most importantly read this: – jsj Sep 9 '12 at 13:38
@trideceth12 I've edited question. – andrybak Sep 9 '12 at 14:52
Are you dual booting? Are you virtualizing? – JoshP Sep 20 '12 at 17:40
@Josh , If you mean my linux installation, then it is dual boot. Linux has its own partition. – andrybak Sep 21 '12 at 20:37
up vote 1 down vote accepted

The problem is in standard network-manager. It somehow (in a very strange way) overwrites routes for eth0 (LAN), making LAN unaccessable.

Solution for my problem:

Manually add to /etc/network/interfaces

auto eth0
iface eth0 inet static
address 192.168....
netmask 255.255....
gateway 192.168....

And connect to DSL using pppoeconf, pon and poff commands.

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