Unable to connect to Hexxit Hamachi Server!

[HawkSmith]

So my friend made a hexxit hamachi server, and it's telling me that it, "Cannot Reach Server." I can't ping him, it tells, "Request timed out." And then it tells him when he tried to ping me it tells him, "Destination host unreachable." I probably have a firewall, and I want to add Hamachi to the list of okay things, unsure on how to find Hamachi on that list. Umm.. I've looked for awhile and saw other people have had this problem partially.. and I'm quite unsure on how they fixed theirs if they did actually fix it... Help please!

[PhoenixPlayzz]

I think, since Hamachi sometimes blocks the port of your friend, try power cycling Hamachi, it worked for me.