on SketchUp 25, the 3d warehouse worked when I downloaded the software and stopped working a few times. the only workaround I have found is going straight to the 3d warehouse website and downloading models separately or uninstalling and reinstalling skp
Are you sure about that? SketchUp 2025 hasn’t been released yet. Your forum profile says you are using SketchUp 2024.
Your forum profile is confusing and doesn’t provide an operating system. Are you using Windows? If so, did you install SketchUp correctly? That requires right clicking on the downloaded installer and chossing Run as administrator.
What happens when you click on 3D Warehouse in the Window menu?