After Factory reset, Can't login to Google with email

Galaxy Note 4. Phone was stolen a while back. The person factory reset it because they did not have my password..to get but now that I have my phone back I can't get past the setup screen. It won't login to my Google account.. I've changed the password waited 12hours then retried but no luck..

Another weird thing is before stolen it was connected to Xfinity WiFi, (Remembered). Now it won't connect says, can't use that network, but works when I connect to Starbucks WiFi, but still won't let me get past Google login.. I dont get it .

Also when I hold power, home, vol down buttons phone tells me about a “Custom Os”. To download??