Repetetive cycle for about 2 weeks now with my S5 Neo:
Phone disconnects from wi-fi during the night (doesn't matter if phone is charging or already fully charged so not plugged in). Wi-fi bars are @ max but details indicate "failed to connect to wi-fi" error.
Tried all of the suggestions available here via search and rebooting the modem works. However, at night the phone disconnects again and won't connect in the a.m. Says connecting, then later failure error again. No problem with other devices (Ipad and PC's and my wife's S5 Neo are all connected OK. Any further Ideas?