I've had a Verizon Samsung Galaxy S4 for a few months with everything working fine. Within the last week I have not been able to keep the WiFi connected to my network. Had to use my network password constantly to gain access but drops the connection within a few seconds. Says my network is secured with WPS available. This is the only device having the problem. Have an IPhone, 2 laptops and 2 tablets that connect with no problem. Tried about everything with no luck.