Possibly some other application is interfering with the keys: https://community.adobe.com/t5/illustrator-discussions/illustrator-stuck-on-hand-tool-cursor-icon-after-launch/td-p/14552007  ... View more

Hi there Welcome to the forum! This document should help: http://helpx.adobe.com/creative-cloud/kb/unknown-server-error-launching-cc.html Thanks Bev ... View more