Well the wireless equipment seem to be a tad but different than the switches or routers. 9600, 8,n,1,n is correct but it almost seems like flow control is still enabled. Have you tried connecting using another laptop? If you have multiple AP's and you get the same results, then its not the AP, but maybe mess around with the settings on putty again. Do you have another program like SecureCRT to test with? Or have you tried the windows default terminal?