This shows how to turn Mobile Hotspot on or off. If you're having trouble setting up or connecting to Wi-Fi, make sure Mobile Hotspot is off.
When Mobile Hotspot is turned on, other Wi-Fi services are turned off.
This article applies to the CDMA/LTE version of the Samsung Galaxy Tab SCH-i905 and not the WiFi only version. A quick method to identify the device version is the location of the volume control keys.
Related Topic: Mobile Hotspot Settings