After Nougat software upgrade on Monday 3/6/17, I can not connect to internet at home but can connect at work and other locations. Phone indicates strong wifi connection but will not connect to internet. I have performed shutdown and restarts for cell and AT&T router. I have selected 'forget' in wifi options and reconnected but no internet connection. Other devices (Samsung tablets & Motorola cell) connect to home internet ok. My modem/router is AT&T 5031NV. Wife has a Galaxy S5 and received a software update in last two days. Noticed last night she can not connect but do not know how long she has had this problem. Suggestions will be appreciated. Thanks.