I have a Samsung Galaxy Tab SM-T530NU running Android 4.2.2. The Wifi connects fine at home, hotels, etc. I have one place that I frequent that it will not connect to the router. Almost everyone in the building has a tablet of some sort or use their cell phones and they all connect fine. When I select the proper Wifi connection and enter the password, which I confirmed, I get "connecting", "obtaining IP address" then "connection failed". This is the only place where I do not connect. Any ideas as to what the problem might be?