Ok thanks Deerpark for helping me out!!
I learned allot like the DNS bypass and the tracert command!
As there was no other solution I reseted the whole thing!
Now the problem is solved after hours of testing and making the router work! (It was only my second time so...)
Thanks for taking the time to helpe me!
I'd liked it if I could solve it without having to rest but hé it works so.
Thanks for everyone who helped me!!
Jonas