[ccHaRdKoR]

So my RAT is set succesfully, after I crypt it with my paid FUD crypter it doens't connect.

What could be wrong?

Thanks blackhatters

[chunky]

Well we don't know how your crypter works so contacting its developer would probably be the best way to find out what's wrong.

[mothered]

It's obvious the crypter's obfuscation has rendered the RAT In a non-functional state.

As @chunky mentioned, get In touch with the person of whom you've purchased the crypter or opt for another one.