Originally Posted by
Isabel Gerber the forget and modify option comes when WiFi connected. the problem is connection is not stable disconnecting within a second.
Ah, ok. Those steps only work when WiFi is ON and the network is at range. Strange that you can't keep the connection for the short time required for this process.
In recent android versions there's an easy way to forget connections while out of range, but I'm not sure if this will work for KitKat. Worth a try though. Switch WiFi off - go to settings - WiFi and look for the 'saved networks' options. It could be hidden under the overflow menu (three dots top right - advanced) or a similar 'more' option.
As I mentioned before, take a screenshot of your WiFi settings screen and post it here.