Solution: First, check if the switch's power indicator light is on and ensure the power source is properly connected. If there's a power switch, make sure it's in the “On” position. adaptor have problems, basically there are no drivers installed. We will now introduce some of these problems and provide solutions to help you make better use of a KVM switch. After I plug my keyboard, mouse, and monitor into the KVM switch and restart my dell dimenison 8300, I cannot use my mouse nor my keyboard through the KVM with my new dell computer, but I can use the. Within the VM, an ethernet network adapter is detected and being used by Windows, but there is no internet access. I've also seen it suggested to use iptables instead of iptables-nft, but this did not work for me.