[Android Central Question]

my samsung note 4 is hardly to connect wifi.

When I press and hold the wifi name, the line "forget network" does not appear, it only appears the line "Connect to network". However, when I press on to that, it said "Failed to connect to network", although I guarantee the password is correct.

[pkcable]

Go to the list of WiFi networks, THEN click on Details (OR if you went all the way in through the settings menus you might already be there), THEN click on Advanced, THEN Manage WiFi networks, then from THAT list click on any that you want to Forget and click on Forget.