A problem with Re-association with an AP

[katbhc01]

An XDA II (i-mate) successfully associates with an AP. If you leave the WLAN coverage and come back later, it is nearly impossible for the XDA II to re-associate with the AP, unless you remove and insert the WLAN SD card! Even the rebooting of the XDA II doesn't work either.

The SD card is socket SD card.

Any ideas to solve it? Is it possilbe to stop WZC to avoid it?

Thanks