H4RDLINE gotta love people like you making false claims based on literally nothing. Plutonium does not earn anything from any source other than donations. If there were no servers at all and everyone was playing in custom games it wouldn't change anything for the team behind Plutonium. Dedicated server hosting has always been free. What is not free is having someone give you a powerful computer that runs your servers 24/7. This is logical and not related to Plutonium
Your IP address is being flagged as a VPN or proxy. You can call your ISP provider and ask them to change your IP address for you. This service is free. Alternatively, you can contact the server owner and ask them to whitelist your IP address.
Peripherals are configured in the main menu not in a game
Try to install DirectX and make sure your default device is configured properly in Windows
Also make sure you didn't mute the bootstrapper in Windows sound mixer