Cannot enter the game wihtout a VPN

Greetings,

Every day, after playing some matches, I get sent to the start screen right when the match ends with Error Code: leaf. (Never happened to me mid-play)

When I press "continue," I get stuck on a black screen for a long time, followed by an Error code: net.

The issue usually remains for the rest of the day, and I cannot play unless I'm using a VPN.

Yet all other games are running smoothly.

I tried:

-Restart the game, PC, and router.

-Updated Windows and all drivers.

-Hard reset the router.

-Contacted the ISP for any issues.

-Fully flushed the DNS.

-Used google, Cloud, and open DNS.

-Verifying/reinstalling the game.

-Used Exit lag.

- Used Surfshark and Express VPNs ( Works every time but adds more ping)