Samsung Galaxy S4 Wifi Connection Problem with Dlink DIR-655 Router [SOLVED]
If you have a problem connecting your Samsung Galaxy S4 to a Dlink DIR-655 Wifi Connection then you need to change the following:
Login to the DIR-655
Go to:
Wireless Settings
Manual Wireless Network Settings
Now scroll down to the WPA Header on the page.
Change the Cipher Type to TKIP. (If it is on AES or AES & TKIP it will have problems on the Samsung Galaxy S4 for some reason.)
Problem solved.
Note: I used firmware 1.31EU
To view the firmware version go to: Tools > Firmware.