ERROR: The internet cable has been disconnected

Just in case there is a translation issue: are you using Wifi and the error message still says internet cable? Or are you actually using an ethernet cable?

I wonder if the 2025 game uses a lot more data than the prior F1 games? If so, maybe there is an issue with your router. There are some confusing issues emerging about Wifi security, so routers are getting more frequent updates right now.

EDIT: clarity

p.s. What generation of Wifi router are you using? Wifi 5, 6, or 7? If the 2025 game requires more bandwidth than the older F1 games then maybe your router just can't keep up. Sometimes routers just slowly deteriorate until they completely stop working. 

I'm using a cable connected directly to the PC.

The strange thing is that it only happens with this game. I don't have this problem with any other current game, regardless of which one it is.

It's Wi-Fi 5. 

However, I have it connected via Ethernet cable, so it shouldn't be a problem. And I have a 600 Mbps download speed.

Hey SulGameYT​, I'm sorry to hear you're getting disconnected mid-game. Have you tried any troubleshooting steps yet? While we don't know what you've tried so far, I would suggest starting with a Clean Boot and disabling any in-game overlays. That will disable other background programs that might be conflicting with the game. 

Let us know how that goes.

If EA_cuervo​ suggestion doesn't work I have a follow-up suggestion: You probably already checked this, but just in case...are you sure that your PC isn't connecting to both your wifi network and the ethernet at the same time? The Windows operating system shouldn't allow this, but Windows has been more glitchy than usual because Microsoft is in a rush to add AI features.