Inbound traffic blocked, check firewall settings

Okay, so me and my friend tried to play FSX on LAN via Hamachi, but we did not get far because of this message (shown below). We both tried 

This - https://community.logmein.com/t5/Hamachi-Gamers-Group/Inbound-Traffic-blocked-check-firewall-settings/m-p/137168/highlight/true#M997

and this - https://community.logmein.com/t5/LogMeIn-Hamachi-Discussions/inbound-traffic-block-check-firewall-settings/m-p/138824#M15843

 My diagnose:

Tunnel: OK

Local results:
Adapter configuration: OK
Traffic test: Inbound traffic blocked, check firewall settings
Peer results: [218-188-826]
Adapter configuration: OK
Traffic test: OK

Friends Diagnose:

Tunnel: OK

Local results:
Adapter configuration: OK
Traffic test: OK
Peer results: [172-104-966]
Adapter configuration: OK
Traffic test: Inbound traffic blocked, check firewall settings

anything that could help us? we are desperate at this point.