WiFi disconnecting issue(Is it me or happening with others as well)

[paras0710]

Sometimes my wifi disconnects itself. When in home on WiFi sometimes internet stops working when i check i found my phone is not connected to wifi then i have to connect it again. My wifi router is dual band ac2600 having excellent signal strength both band have same SSID. other devices are working properly.

[ColorSage]

Is power saving mode off? Maybe there's some app that shuts down wifi after inactivity period. Or maybe you're talking about forgetting SSID&password? That may occur when authentication fails.