[Tutorial] How to use Hamachi

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I tried using Hamachi recently and had a problem using it.

I used it out using 2 PCs At home.
First off I created the Network using PC1.
Then joined using PC 2(LAPTOP).
Both PCs uses v.9.8
Now I used Mhp3rd HD to test it out
PC 1 was fine entering guild hall 1
But 2 wasnt able to join, when I trigger the "Online Gathering Hall" it freezes, then after a few sec. it shows up " Communication Error blahblah" or "Warning:Thread something I forgot"(forgot the reason why I got that)
Then I tried vice versa, but the one joining still freezes still freezes.

Help