If i want to play via hamachi on lan with some friends of me they cant see our server wich is hosted by one of us.. firewall is off etc etc ive tried a few things like degrading hamachi just like in V1 but that did not help then ive tried a few other things but without luck.
I play on Hamachi quite alot and haven't had any problems. Now, I did read of people having the same problem you described. If you are using XP, open your NETWORK CONNECTIONS, Click ADVANCED, then ADVANCED SETTINGS... Then under connections highlight HAMACHI and click the UP ARROW until hamachi is at the very top of the list. Click OK and reboot. Make sure your buddies do the same. Hope this helps.