gpg: keyserver receive failed: Connection timed out [closed]
I'd like to install Neotic on Ubuntu 20.04.
In step 1.3 Set up your keys, after executing sudo apt-key adv --keyserver 'hkp://keyserver.ubuntu.com:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654, it shows gpg: keyserver receive failed: Connection timed out. Neither does sudo apt-key adv --keyserver 'hkp://pgp.mit.edu:80' --recv-key C1CF6E31E6BADE8868B172B4F42ED6FBAB17C654.
What should I do?
Thanks
Closing as likely duplicate of https://answers.ros.org/question/3724...