ComfyUI can't connect to backend?

I downloaded ComfyUI from Download ComfyUI for Windows/Mac and did all the instalation steps with no problems. Then i selected a flux template, and dowloaded the required model. But when i try to queue, a reconnecting error appears.

I can’t access the logs trough the logs and terminal panel, and looking into the dev tools, it seems like the front can’t connect to the backend?

解决了?

I couldn’t solve it, neither acknowledge what caused the problem, so I installed manually following the instructions in the GitHub repo. I’ve never had a problem since.