[Mauzen]

Eventually your provider is blocking tcp hosting.
BTW, when hosting with that umts/lte stick, did you think about
immoral high ping (at least 100-200ms higher than with normal internet access)
extreme traffic (20gb/month even with few players, going up exponentially, that might make your internet bill explode if you pay for traffic)
no-ip-like services might be hard to configure

Running a serious server via such a stick isnt any better than running it on your android phone (as someone recently asked)

Quote:

Originally Posted by Captain_Mani I went to advanced firewall settings and added the port 7777 too. Still no change.

For both tcp and udp? Maybe try to deactivate the whole firewall for testing.