I'm wondering if you can share the files of chariot configuration that you're using for wifi testing, like bridge_updn.tst, bridge_up.tst, bridge_dn_x8.tst, bridge_dn_160mhz.tst
All IxChariot tests use the Throughput.scr script with TCP/IP. The only changes from defaults are the test file size, which is usually set to 1,000,000 Bytes and number of sessions used..