To solve this, call you ISP and request for a static IP an address of your very own, and no one will dare to steal it from you. After that its all manufacturer-specific but look under either the Advanced or Power Management. Once that was disabled I never had any further issues whatsoever. However since both laptops in the house continued to work fine wirelessly in fact faster after the upgrade the problem was obviously not the router but the PC itself.
My internet connection both wired and wireless was flawless until my provider upgraded my router and broadband speed, after which my wired PC Windows 10 started to continually disconnect and connect every minutes. Call the ISP and check the signal of your internet. You may also like to read: iPhone keeps disconnecting from WiFi - how to fix.
Layer of dust inside your dusty PC is causing overheating of chips resulting in unwanted reset of the system.
