First, have you updated your firmware - if you're on the original firmware it had this problem that once you lose wifi it may not come back until you reset.If you are on new firmware, try turning wifi off then back on. If nothing, try menu-scan and see if your network shows up (you'll have to re-enter your security pw again).Hope it helps!
Before you do that!! There is a way to give the tablet a network to connect to in the future and enter all the password, ssid and such. Go home/menu/settings/wireless controls/wifi settings/add wifi network. There you can enter the ssid, and password for your network.geez, i hope you didn't re-install. what a pita...dan
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