# SketchUp cannot connect to Transmutr You can try several things: * Changing the Port in Extensions > Transmutr > Settings * Doing the instructions in the "[Transmutr's window is blank](https://help.transmutr.com/faq/..#transmutrs-window-is-blank)" page * Authorize SketchUp and Transmutr in your firewall If the issue persists, please send an email to