I am a newbie, got my Raspberry Pi 4B as a birthday present. The OS is PRETTY_NAME="Raspbian GNU/Linux 10 (buster)", NAME="Raspbian GNU/Linux",VERSION_ID="10" I started out by setting a static IP and had my Pi connected with an Ethernet cable and always plan to use an Ethernet cable. The static IP worked fine and I was able to access the Pi remotely. I wanted to install a VPN service and have an account with IP vanish.
I followed the by IPVanish support(https://support.ipvanish.com/hc/en-us/articles/360044539333-How-to-configure-OpenVPN-on-Raspbian-on-the-Raspberry-Pi) for installing IP vanish on my Raspberry Pi 4. as I understand this procedure involved installing network manager and open VPN but it also had me purge the dhcpcd service as it said it was redundant after following the procedure. The primary commands used were: sudo apt install network-manager network-manager-gnome openvpn openvpn-systemd-resolved network-manager-openvpn network-manager-openvpn-gnome
and then sudo apt purge openresolv dhcpcd5
I followed the procedures and the service worked briefly however I no longer was getting a static IP from my router. I want to be able to have a local static IP to access my pi remotely and connect to VPN service when I want to. I attempted to set up a static IP using the network manager graphic interface and setting the DNS server to 188.8.131.52. I was able to get the static IP address back but now when I try to use the chromium browser it will not connect to any websites and provides the following comment DNS_Probe_Finished_Nxdomain in the browser body. It appears my DNS service is not functioning because I can ping my router an I can ping Google but when I try to run the browser or access sites in the terminal window using the site name it does not work. I have contacted IP vanish support and am getting unclear feedback and the people I spoke with do not seem familiar with Raspberry Pi systems. Any helpful advice would be appreciated. Thanks