It's not my ADSL provider as there is no dropout issue on other routers. This one just bricks and then doesn't respond until I give it a manual reboot. What will disabling UPNP do?

Model : Archer D7 Hardware Version : Firmware Version : 1.6.0 0.9.1 v002d.0 Build 160216 Rel.57110n ISP : Hi, I have a new Archer D7 and it keeps freezing and needs rebooting. When it freezes, I...