Samsung had hoped to have the Android 3.2 update on most Galaxy Tab 10.1 devices by this time, but a glaring WiFi error forced them to withdraw the new software until a fix could be made. Issues have been resolved and the update is back on its journey to a Tab 10.1 near you. For those that never received the upgrade, you can pull the file over-the-air right now. If you were one of the unlucky ones to receive the flubbed update, your only chance at redemption lies in Samsung’s Kies software. You will have to connect to a PC to get things back in order. Galaxy Tab owners should be happy with the turn around from Samsung. It’s not often issues of software updates are resolved so quickly, after all
SOURCE: Fixes in hand, Samsung begins pushing Galaxy Tab 10.1's Android 3.2 update again | Android Central