Today I performed some more tests, from wi-fi hotspot to somewhere else/cable modem.

From these test I learned that windows security center and windows firewall must be running (with that the services I mean)

If windows firewall is off (with this I mean the windows firewall is stopped) then inbound connections udp and tcp apperently don't work.

Why this is I will have too look into, perhaps this is some windows security feature or architectural thing.