Originally Posted by jonsaddles
Have had my new S4 for about 3 weeks now and am starting to notice that it continually forgets my wifi network key.
It scans and finds the routers no problem but I have to enter the key manually most times.
This happens irrespective of if I toggle wifi on and off or not.
Have already done a factory reset and no I don't have any D link routers.
Any help very gratefully received.
I had the same problem with a new router (ASUS N66U, and I bought this to replace Dlink router to resolve other issues the phone had), and another person had posted about using TKIP encryption type, so I setup a guest network on my router with authentication method as WPA-Personal and WPA encryption method as TKIP, and this problem has gone away. This problem however exists in places where I have no control of the router.
Hope this helps.