apt-get update not working ?

[Michał Sznajder]

Hi

Hard drive in my laptop has died recently so I have bought a new one.
And because of Moore law I have twice the space on the new drive. So I
decided to install Linux and and the choice was the latest stable
Ubuntu.

Right now ddrescue is copying data from my old drive to the new one
and I am having fun with Dapper Drake. Almost. I tried to make apt-get
update but I got following :

michal at michal-laptop:/usr/share/applications$ sudo apt-get update
Err http://www.kadu.net dapper Release.gpg
  Connection failed
Err http://security.ubuntu.com dapper-security Release.gpg
  Connection failed
Ign http://security.ubuntu.com dapper-security Release
Ign http://security.ubuntu.com dapper-security/main Packages
Err http://archive.ubuntu.com dapper Release.gpg
  Connection failed [IP: 195.248.90.23 80]
Err http://pl.archive.ubuntu.com dapper Release.gpg
  Connection failed [IP: 195.248.90.23 80]
[.....SKIP LOTS OF LINES...]
Failed to fetch
http://pl.archive.ubuntu.com/ubuntu/dists/dapper-updates/Release.gpg
Connection failed [IP: 195.248.90.23 80]
Failed to fetch
http://archive.ubuntu.com/ubuntu/dists/dapper/Release.gpg  Connection
failed [IP: 195.248.90.23 80]
Failed to fetch
http://security.ubuntu.com/ubuntu/dists/dapper-security/Release.gpg
Connection failed
[.....SKIP LOTS OF LINES...]
Reading package lists... Done
E: Some index files failed to download, they have been ignored, or old
ones used instead.

But I could open most of mentioned files in Firefox. Ping also works.
What could be wrong?

Regards
    Michał Sznajder