A
Archive-8
Guest
You must be doing something wrong, 1 dodgy box is a possibility, but not the amout you have gone through.
You must be missing a button push. Both my 5302's are flawless. (Apart from the 45000 symbol rate issue)
As you said something is wrong, very wrong.
So you will need to start checking things one by one.
Perhaps @Milamber can help you with this.............