Hello

Syro tech modem connected to TL WR841N

Since last few months my net keeps crashing when i open softwares like discord, some steam and origin games.It is really weird and hard to explain.
I complained to my ISP many times but everytime they failed to fix and said it is an error from my side. It only crashes only when i connect my laptop otherwise it is fine.
Sometimes it works fine when my laptop is connected too but its hard to tell when it will go next, once it starts crashing it will keep crashing within 5 mins of restarting the wifi.
I tried resetting my network setting and even did fresh install of windows the problem still seems to continue. I would really appriciate if anyone has any idea what the issue is or how to resolve it.


Laptop Specs:
i7 7700hq
1050ti
8gb ram 
1tb hdd