Issues about USB connection on MBA2013(mid)

Hello.

I have an problem with my MBA 2013(mid).

I purchased MBA for DJing but really disappointed with this.

My set up is ...

Traktor Scratch Pro 2.6.3

NI Audio 8 DJ with the latest firmware (2.6.0 fixed issues with kernel panic on MBA 2013 and support mavericks)

Denon CDJ SC2900 and SC3900

DJM 800

2 CDJs and Audio8DJ connected to MBA on USB port.

CDJs have its own power and Audio8DJ uses only USB bus power.

Everything is fine with this setup. Timecode signal is steady and has no latency.

But after I start mixing, suddenly all usb connection goes out randomly.

Sometimes it took 5min, sometimes 30min.

No MIDI signal, No Sound output

MBA's console show me messages ...

2013. 11. 2. 오전 2:09:59.000 kernel[0]: USBF: 3423.591 AppleUSBXHCI::PollEventRing2 (bottom) - HSE bit set - USBSTS: 0x00000005

2013. 11. 2. 오전 2:09:59.000 kernel[0]: vtd[0] fault: device 0:20:0 reason 0x6 R:0x480000

I have researched every forums (NI, Apple) but couldn't find any solution yet.

But there was so many posts about issue about USB3.0 on new MBA.

Plz let me know if you have a solution 🙂