Since the Marshmallow update last week, neither my Galaxy S6 or S6 EdgePlus will download updates or apps from Google Play over WiFi. Mobile Data works fine. I have taken all the steps outlined by Google and Verizon to solve this, including:
Resetting my phone.
Checking my router for the latest firmware
Removing my Gmail account from my phone.
Removing Google Play, all its updates, and clearing the cache for Google Play, Download Manager and Play Services.
Reset network settings on the phone.
Samsung apps from Samsung's app store will not download via WiFi either. I have tried both 2.4 and 5.0 GHz connections. All other devices on this network are working properly. If I turn off WiFi and use mobile data, all will download. Play Store is still in the original factory build, and will not update to the latest version via WiFi. I have also called Google and was told that I would have to wait until enough people complain so the engineers can fix this issue. So, I am trying this. All the steps listed above also included router reboots, phone restarts, phone shutdowns, and cache clearing. I have done everything except reset my phone to Factory Settings, and I refuse to believe that is going to fix this, and I would rather not spend even more time trying to fix something that clearly needs to be fixed in this update.