id,summary,reporter,owner,description,type,status,priority,milestone,component,resolution,keywords,cc 305,Invalid signatures,Matteo Ipri,,"Hi all, I can not install xpra on Ubuntu 17.10 Artful AArdvark because I get the following: {{{ W: GPG error: http://winswitch.org artful Release: The following signatures were invalid: EXPKEYSIG 18ADB31CF18AD6BB Antoine Martin E: The repository 'http://winswitch.org artful Release' is not signed. }}} I followed instructions on: https://winswitch.org/downloads/debian-repository.html?dist_select=artfulbeta and on: https://winswitch.org/trac/ticket/304 Steps to reproduce: {{{ apt-get install curl curl https://winswitch.org/gpg.asc | apt-key add - }}} and {{{ apt-get install dirmngr apt-key adv --fetch-keys https://xpra.org/gpg.asc }}} both get me the above message; while {{{ apt-key adv --keyserver keys.gnupg.net --recv-keys F18AD6BB }}} results in a connection timeout. Please advice, Thanks",defect,closed,blocker,,Global,fixed,,