zdravím z Ubuntu

tak už to nějak záhadně začalo jít. i když jsem to tak měl nastaveno předtím tak to nešlo
návod na připojení:
PPPoE Modems
This section is about setting up an ADSL Internet connection using an ethernet PPPoE modem.
You will need to have subscribed to an Internet Service Provider, and your Internet connection must be installed and functional. A "DSL" light on your modem usually shows that the line is synchronized.
You will need your username and password for the account. You must also have an ethernet card connected to your PPPoE modem with the correct type of cable.
Finally, you need the PPPoE package to be installed in order for the following command to work. This package is installed by default, but can be missing if the configuration has been changed. If the following command does not work, you will need to install this package, which can be found on the Ubuntu CD.
To set up the modem:
1.
Open Applications Accessories Terminal
2.
In the terminal type:
sudo pppoeconf
3.
A text-based menu program will guide you through the next steps, which are:
1.
Confirm that your Ethernet card is detected.
2.
Enter your username.
3.
Enter your password.
4.
If you already have a PPPoE Connection configured, you will be asked if it may be modified.
5.
Popular options: you are asked if you want the noauth and defaultroute options and to remove nodetach - choose Yes.
6.
Use peer DNS - choose Yes.
7.
Limited MSS problem - choose Yes.
8.
When you are asked if you want to connect at start up, you will probably want to say yes.
9.
Finally you are asked if you want to establish the connection immediately.
4.
Once you have finished these steps, your connection should be working.
To start your ADSL connection on demand, in a terminal type:
sudo pon dsl-provider
To stop your ADSL connection, in a terminal type:
sudo poff dsl-provider