Go an issue where I can connect to the company Wi-Fi network using WPA2 Enterprise and initially no problems with the connection.
Then the iPad hibernates after not touching it for a few minutes. When I come to pick it up, turn it on, it cannot automatically connect to the Wi-Fi network again and the only way to reconnect is to forget this network and redefine it every time with SSID, security, username, passwords, manually configuring the proxy server, port number, another username and password; all a bit of a pain in the rear. Otherwise, I get the message "unable to join network".
Looking at the network settings in WPA2 it's using DHCP and the info that seems to be retained after hibenation/power up is: DNS and search domains.
The IP address, subnet mask and router fields do not have any content each time the machine turned back on.
This behavior does not occur on any other WiFi networks I've connected to and will reconnect seamlessly each time the iPad is switched on without having to re-define the connection to the Wi-Fi.
Any suggestions on how to fix?
Ipad2 64GB 3G
OS 4.3.3 (8J2)
WPA2 Enterpirise using DHCP