Not all is there but I've made a sticky containing a lot of it at
http://forums.cnet.com/7723-7589_102-378511/samsung-owners-start-here/?tag=contentBody;threadListing

Be sure the router is within 20 feet of first setup and NEVER HIDE the SSID. There are other reasons such as found at http://forums.cnet.com/7723-13973_102-560420/wifi-disconnects-from-time-to-time-galaxy-tab-7-plus/?tag=contentBody;threadListing

Why Samsung can't help is it is not their network. Some folk have a rough time understanding that.
Bob