I highly doubt that. But it looks like just rebooting the router has done it for me.
@CCECash I would suggest you guys investigate this further since it doesn't seem like I'm the only one facing this issue.
The reason may also be in the antivirus, which has a web traffic control function. If you disable this function, then everything works fine.
In Russia, many foreign sites do not work without VPN, including this forum, and the main protocols L2TP, IPsec, PPTP and OpenVPN are blocked. Therefore, we use more complex protocols.
Recently I was abroad and all services work there on the OpenVPN protocol.