plz help me i port forward and some how it wont work so now i cant host a server by nasa time agent 
Windows Firewall?
Check there, just explicitly open the port 28000 - 28030 !!!UDP!!!
Router?
Check there, forward the ports 28000 - 28030 !!!UDP!!! to your IP / PC
PC?
You should have a static IP, that's more stable, if possible just give yourself a static ip in the router based on your MAC adress. ( For DHCP )
If you need further help just send me a PM.