Cursor won't connect to AI after installation? Here's how I troubleshot and fixed it

Recently, I've seen many peers start using Cursor for coding, and I've also switched from VS Code to Cursor. However, I did run into a few pitfalls during the initial installation, especially regarding connecting to AI models, which took quite a while to figure out. I'm sharing the problems I encountered and the resolution process, hoping it helps those who come after me. Initially, installing…