SketchUp 的 3D Warehouse、添加位置和 Extension Warehouse 功能需要不间断的网络连接。 为确保连接，您需要修改您电脑或网络的防火墙设置、代理服务器或网络安全软件设置。

• SketchUp needs access on the following ports:
  80, 8080, 443, 5053 and 50530
• SketchUp needs permission to visit all of the sub-domains for SketchUp.com, easily included as:
  *.sketchup.com