guruuser@GRU01DBS01TEST:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
[sudo] password for guruuser: 
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.9y6m2FvVzj --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d//ntteam.gpg --keyring /etc/apt/trusted.gpg.d//puppetlabs-keyring.gpg --keyring /etc/apt/trusted.gpg.d//puppetlabs-nightly-keyring.gpg --keyring /etc/apt/trusted.gpg.d//viri.gpg --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error