dpkg error when running apt-get upgrade.

[zeppelin]

Hello,

I cannot access xbian.brantje.com at all.
Is there any change that the server is down or my ISPs ip range is blocked?

Terminal

root@xbian:/# less /etc/apt/sources.list
deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
deb mirror://apt.xbian.org/mirror.txt wheezy main

Terminal

root@xbian:/# apt-get update
Hit http://mirrordirector.raspbian.org wheezy Release.gpg
Hit http://mirrordirector.raspbian.org wheezy Release
Hit http://mirrordirector.raspbian.org wheezy/main armhf Packages
Hit http://mirrordirector.raspbian.org wheezy/contrib armhf Packages
Hit http://mirrordirector.raspbian.org wheezy/non-free armhf Packages
Hit http://mirrordirector.raspbian.org wheezy/rpi armhf Packages
Ign http://mirrordirector.raspbian.org wheezy/contrib Translation-en_US
Ign http://mirrordirector.raspbian.org wheezy/contrib Translation-en
Ign http://mirrordirector.raspbian.org wheezy/main Translation-en_US
Ign http://mirrordirector.raspbian.org wheezy/main Translation-en
Ign http://mirrordirector.raspbian.org wheezy/non-free Translation-en_US
Ign http://mirrordirector.raspbian.org wheezy/non-free Translation-en
Ign http://mirrordirector.raspbian.org wheezy/rpi Translation-en_US
Ign http://mirrordirector.raspbian.org wheezy/rpi Translation-en
Get:1 http://xbian.dehakkelaar.nl/ wheezy Release.gpg [3,639 B]
Get:2 http://xbian.dehakkelaar.nl/ wheezy Release [3,639 B]
Ign mirror://apt.xbian.org wheezy Release
E: GPG error: mirror://apt.xbian.org wheezy Release: The following signatures were invalid: NODATA 1 NODATA 2

Terminal

root@xbian:/# cd /tmp
root@xbian:/tmp# wget http://xbian.brantje.com/xbian.gpg.key
--2014-02-23 12:02:53-- http://xbian.brantje.com/xbian.gpg.key
Resolving xbian.brantje.com (xbian.brantje.com)... 188.142.48.93
Connecting to xbian.brantje.com (xbian.brantje.com)|188.142.48.93|:80... failed: Connection timed out.
Retrying.

Terminal

Pinging xbian.brantje.com [188.142.48.93] with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.

Ping statistics for 188.142.48.93:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

Thanks!