My friend is unable to connect to me and has the error in the title. We have tried quite literally everything to fix it, from updating and reinstalling drivers, reinstalling all of Hamachi, letting it bypass windows firewall, running with admin privileges, etc. I can provide more info if needed.
Here's the full error message when I click the diagnose button on his connection:
Tunnel: VPN domain's tap device is down
Local results: Adapter configuration: Cannot get adapter config Traffic test: Cannot complete test Peer results: [266-185-730] Adapter configuration: Cannot get adapter config Traffic test: Cannot complete test