This has been an ongoing issue since buying my S7! It constantly disconnects from wifi, whether it be my wifi at home, wifi at my parents, wifi out in public, etc. I have rebooted my router, reset my wifi settings in my phone, contacted my Internet provider, googled myself silly, all to no avail! Multiple times a day I have to disconnect and reconnect my wifi on my phone or it just stops loading pages and tells me I have no connection. These phones are way too expensive to be complete junk! No one else has this issue in my household, so it is definitely exclusive to my S7!