I fixed mine!!
I was having the same problem: My iphone Wifi works great, but my iPad2 is super slow, losing connection, etc.
To fix it all I did was went to the Settings > Wi-Fi then clicked on the blue > next to my Wi-Fi network. Then I carefully wrote down all the various settings/numbers under "DHCP". Then clicked on the "Static" tab and re-entered all the same settings/numbers.
Voilà! No more slow/dropped Wi-Fi!
I was having the same problem: My iphone Wifi works great, but my iPad2 is super slow, losing connection, etc.
To fix it all I did was went to the Settings > Wi-Fi then clicked on the blue > next to my Wi-Fi network. Then I carefully wrote down all the various settings/numbers under "DHCP". Then clicked on the "Static" tab and re-entered all the same settings/numbers.
Voilà! No more slow/dropped Wi-Fi!