Keyserver issue?

Hi all, I'm trying to add GPG key for preliminary stable builds server but I get a timeout error: # apt-key adv --keyserver keys.gnupg.net --recv-key A04BE668 Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --homedir /tmp/tmp.WPQPbWCxI4 --no-auto-check-trustdb --trust-model always --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-security-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-jessie-stable.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-security-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-stretch-stable.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-automatic.gpg --keyring /etc/apt/trusted.gpg.d/debian-archive-wheezy-stable.gpg --keyserver keys.gnupg.net --recv-key A04BE668 gpg: requesting key A04BE668 from hkp server keys.gnupg.net gpg: keyserver timed out gpg: keyserver receive failed: keyserver error Is it the servers fault or did the GPG signature for Trinity servers changed but wasn't updated on the web page [1]? Janek [1] https://wiki.trinitydesktop.org/Preliminary_Stable_Builds#Debian --- Politechnika Łódzka Lodz University of Technology Treść tej wiadomości zawiera informacje przeznaczone tylko dla adresata. Jeżeli nie jesteście Państwo jej adresatem, bądź otrzymaliście ją przez pomyłkę prosimy o powiadomienie o tym nadawcy oraz trwałe jej usunięcie. This email contains information intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient or if you have received this message in error, please notify the sender and delete it from your system.