A:AnswerWi-fi ready players are generally not wi-fi broadcast devices. If you do not have wi-fi in your home, you will need to install some type of wi-fi device to broadcast wi-fi or send a signal through LAN cable.
A:AnswerIf you are purchasing UHD 4K discs, your old Blu-ray players will not play those. If you purchase a modern UHD 4K player, it should play all versions of DVD and Blu-ray discs which are compatible to your region. This model is not region free without adjustment which may or may not invalidate your warranty.