So this has been annoying me for months, My wifi always drops as soon as I connect to a bluetooth device. It's not just my Z3, but my dads does the same thing and a lot of the time our phones seem to interfere with eachother in the same way. Not sure if it's a problem with the router? Or if it's a device problem. But either way, it shouldn't happen. It was fine until the latest update
@EdwardH Before initiating remote play can you try the following Pull down notifications and go across to the quick settings. Turn off location. Start remote play. Do you still have the problem?
Ahh ok, then the problem is the 2.4ghz frequency that your router and Bluetooth are both using. The fix is to use a 5ghz connection so it won't get interference with the Bluetooth of the dualshock 4. Annoying and will cost, but that is the fix.