Help Galaxy s6 edge freezing

[Omtiesto]

hi everyone, my problem is that about every 24 hours my s6 edge disconnects from wifi and freezes for about 20 seconds and then it connects to wifi and everything become normal , sometimes it happens several times in less than 5 mins
any help please thanks
ps: i cant find were to ask questions on the Android forums app, i asked this question from the website plz help
and thank you