I extended Tele2 subscription, received new ZTE modem. Since then I can't use my VPN connection.
Now when I try to connect to the VPN server the Windows shows the error message
"Unable to create a VPN connection between this computer and the VPN server.
Typically, this error occurs if one of the devices (for example, a firewall or router) located between your computer and the VPN server is not configured to pass the GRE(Generic Routing Encapsulation) protocol packets"
Everything worked properly with Tele2 internet connection since I received a new ZTE modem, and the subscription was upgraded.
Could you help me?