# Master Class prerequisites - stuck in loading real robot **URL:** \ **Category:** General Support\ **Tags:** error, ros2, gazebo\ **Created:** [October 29, 2026, 2:20pm UTC](https://get-help.theconstruct.ai/t/master-class-prerequisites-stuck-in-loading-real-robot/42969 "2026-10-29T14:20:35Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![vonfinck](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/vonfinck/32/10670_2.png) [@vonfinck](https://get-help.theconstruct.ai/u/vonfinck)\ **Post date:** [October 29, 2026, 2:20pm UTC](https://get-help.theconstruct.ai/t/master-class-prerequisites-stuck-in-loading-real-robot/42969/1 "2026-10-29T14:20:35Z")
hey there, i am finally back online after moving and need to urgently complete my Pre-requisities classes to qualify for my dream come true robotics master class. BUT im running into lots of lag and issues on the construct app side. Overall it seems quite sluggish and slow but the core point is, that the real city sim robot is not launching… ![image](https://get-help.theconstruct.ai/uploads/default/original/2X/f/fc9fd9d589aabf96fccd63c0e4ee4a1dcc9f0d07.jpeg) ![]()How do you reach out to someone who could help? What to do? I am stuck and do not want to risk the qualification. ---
**Author:** ![duckfrost2](https://get-help.theconstruct.ai/user_avatar/get-help.theconstruct.ai/duckfrost2/32/9365_2.png) [@duckfrost2](https://get-help.theconstruct.ai/u/duckfrost2)\ **Post date:** [October 29, 2026, 3:55pm UTC](https://get-help.theconstruct.ai/t/master-class-prerequisites-stuck-in-loading-real-robot/42969/2 "2026-10-29T15:55:02Z")
Hi, We just talked through discord but just so its clear, we are seeing into this issue of real robot conexion. Please als try with firefox just in case its something related to teh version of the browser in particular. Please let us know if this still is happening