Short version -> ESET Smart Security 4.0.474 is blocking my Hamachi and I don't know why. Long version -> 1) Computer A and Computer B both have Hamachi and both have ESET SS 4.0.474 2) Hamachi on Computer A is able to 'ping' Computer B, but hamachi on Computer B cannot 'ping' Computer A. 3) Only when I disable ESET on Computer A, then is Computer B is able to 'ping' it. I have tried almost everything I can thing of to make it work. The only I haven't tried is the solution! Any suggestions? Thanks.