Добрый день.
А какой VPN и на каком роутере настраивали?
Hello,
I encountered the same issue today. Everything was functioning properly recently, and I have not made any changes to my setup.
It cannot be the 4G data connection, as I have a fiber optic connection.
After some testing, I checked my DNS service and noticed that at the time of the download, a domain that I am unfortunately not allowed to post (from amazonaws) was blocked. I then allowed it and the printer was able to download the model again.
I therefore think that Bambu has changed something in its background services, causing errors/problems with some DNS providers.
For anyone who is still experiencing this problem, try adjusting your DNS settings in your router. Public DNS (Google: 8.8.8.8 or 8.8.4.4, Cloudflare: 1.1.1.1 or 1.0.0.1) may solve the problem.