So far we can connect other devices, such as ipad, other phones, but not his laptop. Also the phone has no trouble connecting to wifi itself, and the laptop has no trouble connecting to any other wifi network.
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.