If you have a strong enough signal that adding a new AP is not neccessary, then you don't need to roam. If you have multiple AP's and can't roam between them, y

If you have a strong enough signal that adding a new AP is not neccessary, then you don't need to roam. If you have multiple AP's and can't roam between them, you're no worse off than if you had one. If you have malfunctioning hardware, then you're going to have problems whether you have one AP or multiple AP's -- use better hardware.