Hi guys, I found this thread, when I was looking for a solution for this problem: DEBUG:handle_hc_chhltd_intr_dma:: XactErr without NYET/NAK/ACK It was caused by my WLAN dongle, which is the following: ID 148f:2573 Ralink Technology, Corp. RT2501/RT2573 Wireless Adapter I tried another one, same man...