6 s edge won't Connect to wifi after did it uodate

[NFtoBC]

Have you re-entered your Wi-Fi SDID and password?

Edit: I just updated my S6 edge a few minutes ago, and it automatically reconnected to my Wi-Fi after the update. 

[xl]

I too just updated the S6 edge.... it automatically reconnected to wifi without problems after the long install and reboot.

[Mobility_Princess]

The s6 update wipes your connection settings such as wifi passwords. So re entering the password like everyone here suggested should fix it