Gpg: keyserver receive failed: keyserver error on Raspberry PIraspbian

Help & Support
1

Anyone know what this failed.
tiring to install it on a raspberry pi running raspbian

root@piProxy:/tmp# apt-key adv --keyserver keyserver.ubuntu.com --recv-keys FDA5DFFC
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.9iYosS9wUj --trustdb-name /etc/apt//trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyring /etc/apt/trusted.gpg.d//wolfram-raspbian.gpg --keyserver keyserver.ubuntu.com --recv-keys FDA5DFFC
gpg: requesting key FDA5DFFC from hkp server keyserver.ubuntu.com
gpg: keyserver timed out
gpg: keyserver receive failed: keyserver error

cheers

2

Looks like issues connecting to keyserver.ubuntu.com - but thats just a theory given the error.

3

is can ping keyserver.ubuntu.com find just does not work on the Pi