It's in the manual but given the fact I can't find the manual did you try turning off the WiFi router for a test to see if that helps? If it does you can change your router's SSID and then the player can't connect.
I've been playing dvds via my samsung bd-hdd combo through my sanyo led-46xr113d tv for months without any problems. But recently I connected the wifi on the combo and now everything freezes when I stop the dvd and attempt to return to the tv. I have to pull the tv power plug out and back in to free it up again. I'd disconnect the wifi if only I knew how, as it doesn't seem to give me this option.
Thanks in advance.