Well basically I upgrade out 1200 series AP from 12.3(8)JA2 to 12.3(8)JEC and as soon as I did that the handheld devices(barcode scanners) completely stopped connecting to the network. The laptops that we run have no issues and work fine just the handheld devices..
the handheld (barcode scanners) are symbol 9000 devices
we have a few different laptops that use the network..
no configurations changes were made