While Internet Connection on My mobile gets overheat!

[tujko]

hi!
I am using Samsung note 5 every thing is cool. some time i even play games on it but it does not cause any heat problem in it. But when i turn on Internet or connect to wi-fi it starts showing the sign of overheating. 11 Ways To Prevent Computer Overheating - CPUtemperThen it also gets slower even my skin feels the burn?
What is wrong with it? can i prevent this android heat issue?
Thanks;

 

[Rukbat]

It sounds as if your wifi transceiver has a hardware problem. the phone has to go into a repair shop (and they'll probably tell you it needs a new motherboard - which doesn't pay, since you can probably buy a used Note 5 for less). If you're very lucky, it's just a loose antenna connection and they'll fix it.