[solved-ish] random usb disconnect

Question

Hi
There's a first time for everything and today that seems to be a random USB disconnect.
So my USB dongle was disconnected and wouldn't reconnect when replugged.
Does this error message mean anything or should I be looking elsewhere to try and find the cause of the failure? Google hasn't turned up much of use and didn't see much on the forums here either.
Jul 1 18:18:53 localhost kernel: [193128.074045] usb 2-5: USB disconnect, device number 3
Jul 1 18:18:53 localhost kernel: [193128.074211] rtusb_disconnect: unregister usbnet usb-0000:00:1d.7-5
Jul 1 18:18:53 localhost kernel: [193128.074216] RtmpOSNetDevDetach(): RtmpOSNetDeviceDetach(), dev->name=ra0!
Any ideas?
Thanks for any help
EDIT seems to be some kind of hardware problem.
Last edited by Bazzaah (2012-07-02 17:25:52)

Answer 1

Hi, a lot of people too (myself included). After upgrade, any usb unit goes away (some external devices like mouses excepted), usb pendrives dissapear (and become corrupted for any other computer), battery goes down  quicklier and performance is affected. It seems 10.9.2 doesn't manage correctly hardware physical connections by asking them continuously. This is my young macbookair performance since I unfortunately upgraded to 10.9.2 four days ago. A lot of people is calling in all forums for questions (iphones, Cameras, external drives, monitors...) that are all related with this missfunction with physical connections.
MacBookAir 6,2
Intel Core i7
1,7 GHz
8 GB
ROM:     MBA61.0099.B07
SMC:     2.13f7
OS X 10.9.2 (13C64)
kernel:           Darwin 13.1.0