Help plz!

Hey!
I got a problem with my NAT type.
Before today my NAT type was open, but now its say strict and i can't host any public server, but my friends can join my Party or private servers...

So why it say Strict?
Can anyone help me with this problem? :P

Thx.

maybe restart your router or something
if id didn't work
go to portforward.com and look how to open your not

Maybe you changed some router settings?

I can normally play on 'NAT Type : Strict' it doesn't really change anything it's just you kinda have less restriction to what game you join. Just keep playing with friends and by the next day it might have opened it does this to me a lot on PC!

if my nat becomes strict i just reset my modem to factory settings, done!