"Avoided poor internet connection" LG G5
You must have updated to a system that includes Avoid poor connections in WiFi setting's !

Just navigate to your WiFi settings via holding on the WiFi icon in the quick drop down menu of your status bar, or open your Settings app and go to WiFi > Settings/Advanced --- Scroll down and un-tick [ Avoid poor connections ]     

If you don't have this setting in your WiFi app, then it's compulsory to have it switched on ( Maybe for battery life or better user experience )