WINDOWS:
1) Start - search for "cmd" - open it
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2) Type "route -p add 25.0.0.0 mask 255.0.0.0 25.0.0.1 metric 1", and press enter. You should get an "OK" back
3) Type "route -p add 255.255.255.255 mask 255.255.255.255 25.0.0.1 metric 1" and press enter again
MAC:
1) Open the Finder, go to Apps, Utilities, click on "Terminal"
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2) Type "sudo route add 25.0.0.0/8 25.0.0.1" and press enter
3) Type "sudo route add 255.255.255.255 25.0.0.1" and press enter
To revert - (if you encounter network problems):
WINDOWS:
In the same place where you put those commands before, type:
"route -p delete 25.0.0.0 mask 255.0.0.0 25.0.0.1 metric 1"
"route -p delete 255.255.255.255 mask 255.255.255.255 25.0.0.1 metric 1"
MAC:
Again, in the terminal, type:
"sudo route delete 25.0.0.0/8 25.0.0.1"
"sudo route delete 255.255.255.255 25.0.0.1"
---------- OLD PROCEDURE ----------
Windows:
1) Start - Control Panel - Network and Sharing Center - Change adapter settings
2) Right click on the Hamachi interface - Properties - click "Internet Protocol Version 4", then "Properties" - Advanced - set "Interface metric" as 1 - confirm and close
3) Right click on your internet interface (LAN or whatever) - Properties - click "Internet Protocol Version 4", then "Properties" - Advanced - set "Interface metric" as 100 - confirm and close
Mac:
1) Open the Finder, go to Apps, Utilities, click on "Terminal"
2) Type "sudo passwd root" and choose a password you will remember
3) Type "su" and write the password you just chose
4) Type "route add 255.255.255.255 25.0.0.1" and press enter
You must redo steps 3 and 4 each time you reboot your Mac.
This isn't a 100% sure fix, it worked for us but it could not for you. I'm glad to help in the comments if I can.
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The music is from the Borderlands 2 OST:
Creature Slaughter Dome / Natural Selection Annex
Hyperion Circle of Slaughter / Ore Chasm
Wallpapers:
Windows: http://spectresinistre.deviantart.com...
Mac: can't find it anymore, it's the Tower of Terror at Disneyland, though