IPsec: can connect but it does not work correctly

[danbet]

I wish to setup an IPsec VPN for access from Windows 10 and have done the settings from the following documents:
https://docs.opnsense.org/manual/how-tos/ipsec-rw-srv-mschapv2.html
https://docs.opnsense.org/manual/how-tos/ipsec-rw-w7.html

From windows 10 I can connect to this VPN, but then I cannot access servers in the internet anymore, only servers that are in the network that I address with the VPN.

If I uncheck "standard gateway for the remote network" from the VPN network connection the internet access works again, but then I cannot access servers in the VPN adressed netzwork.

Do I need a additional rule on my OPNsense?