On July 27, 2011 at 15:37, jcbremotes said...
I don't know if the "i" products support this but my laptop wifi card has settings for roaming aggressiveness. These can be changed to cause more or less frequent checks for signal strength and therefore WAP associations.
This is exactly what they dont have and it also seems the wifi chip is a little weak in general.
Update: after a little reading I found others with the same issue. One fix suggested by Apple is to force the device to renew it's DHCP lease.
[Link: makeuseof.com]Good link, thanks! Unfortuanately no real automatic solution. What I and my customers do is to switch the wi-fi off and then on at the device and then it will connect to the strongest signal/closest AP.