Can't create a sandbox test use, by warning that has a simple password.

Can't create a sandbox test use, by warning that has a simple password. no matter how strong the password I used. Including 1 punctuation , 1 Upper, 1 Lower, 1 Special and at least 1 number, more than 8 characters. It still gave an error of a simple password and i can be easily guessed.

I have same problem

Can't create a sandbox test use, by warning that has a simple password.
 
 
Q