does everyones tablet have to turn off and then back on to get wi-fi to work
Click on the time, which bring up "settings", then wifi, you will see your connection there, click connect. I have an Acer Icona tablet with the leaded earlier ICS. I haven't gotten the official ICS update, and my tablet doesn't always connect to wifi when I power it on. You could also use a widget for wifi to turn on/off.