Apple has stated that upcoming software updates should resolve issues a “very small number of iPad users” have experienced with Wi-Fi connectivity.
In the mean time, Apple suggests this potential resolution…
If you consistently encounter issues connecting to a specific Wi-Fi network, try the following steps to resolve your issue:
Update Wi-Fi router firmware
Verify that your Wi-Fi router firmware is up-to-date.
- Note: This is important if your Wi-Fi router supports 802.11n, as it may still be using the draft specification of the 802.11n standard.
- For AirPort Base Stations, refer to this article for information about firmware updates. For third-party Wi- Fi routers, check the manufacturer’s website for details on updating your firmware.