Upgraded to the latest ipad software version 5.1.1 (around 7th May 2012)... my mistake I now have my wifi disconnecting every 30minutes and I need to manually go and reconnect it.
Any ideas what the development team have got wrong this time?
1. Have you tried rebooting router? Rebooted
2. Reset network settings: Settings>General>Reset>Reset Network Settings - reset (after restore which didn't do anything - as disconnect still happened).
3. Have you tried changing the security settings e.g. WEP, WPA, WPA2 - was already running this set up
Been running for an hour and a bit with no disconnect lets hope this has done the trick.