USB Ethernet no longer recognized?

Hi
After a reinstall of Leopard to remove languages and the sorts I had a slim installation on my air and everything was running nicely. Now however the USB Ethernet is not being recognized at all .. I have checked with the superdrive and no problems there. I have plugged the USB Ethernet dongle into my MBP and the dongle is clearly alive.
Why will my MBA not recognize the thing anymore? It just sits there utterly unresponsively, claiming that the cable is unplugged .. which it is not??
/Jan

Hmm .. one extra restart seemed to take care of business. How odd. Anyways everything is working here for me again
/Jan

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USB Ethernet no longer shows in System - USB or on network list

Hey,
I've been using a USB Ethernet to connect my Macbook Air to the internet for around a month. A couple of days ago it stopped working, showing 'Not Connected' in the network list. I followed the standard advice of swapping out locations, didn't work becuase I couldn't add the USB Ethernet to the list. I then took the advice of removing the Automatic location, and now the only network that is listed is wifi... Nothing gets added to the list, when I try to tether over USB with my phone it doesn't get added correctly to the network list either.
I've reset my SMC and PRAM too.
In System -> USB it doesn't seem to be listed either, although it does detect something, it doesn't seem to be able to realize it is my USB ethernet.
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lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
          options=3<RXCSUM,TXCSUM>
          inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
          inet 127.0.0.1 netmask 0xff000000
          inet6 ::1 prefixlen 128
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
          ether 10:40:f3:83:bd:3e
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          status: active
p2p0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 2304
          ether 02:40:f3:83:bd:3e
          media: autoselect
          status: inactive
sudo dmesg returns the following relevant stuff;
USBF:
1087.985
[0xffffff80071e6600] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 1 of Hub at 0xfd100000)
USBF:
1090.984
[0xffffff80071e6600] The IOUSBFamily was not able to enumerate a device.
USBF:
1091.826
[0xffffff80071e6600] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 1 of Hub at 0xfd100000)
USBF:
1095.224
[0xffffff80071e6600] The IOUSBFamily was not able to enumerate a device.
USBF:
1096. 49
[0xffffff80071e6600] The IOUSBFamily is having trouble enumerating a USB device that has been plugged in. It will keep retrying. (Port 1 of Hub at 0xfd100000)
USBF:
1096.882
[0xffffff80071e6600] The IOUSBFamily gave up enumerating a USB device after 10 retries. (Port 1 of Hub at 0xfd100000)
USBF:
1096.882
[0xffffff80071e6600] The IOUSBFamily was not able to enumerate a device.
Would really, really appreciate some help on this, as I am pretty new to Mac OSX.
Thanks,
Jonny

Hi Why do you need to use a PC since iOS 7 you can download updates Apps everything Over wifi I have iPhone 5 s & 2 ipads in over a year I have never connected them to My Apple pc Try a wifi update If you have problems Try a Reboot press & hold power button & menu button hold both Down until You see Apple Logo you will not last any data. Cheers Brian

USB-MIDI no longer recognized by applications

I have been using my mac on stage for quite some time. Together with Kontakt and a USB-keyboard, it has worked well. Until recently. I do not know what I have done that could have broken it, probably it's the latest Mountain Lion update.
The USB-keyboard (currently a KAWAI stage piano) is still recognized by AUDIO-MIDI-Setup, but it is no longer available in the KONTAKT setup menu. I sometimes use MIDI-Pipe (and it work well until recently). Now, within MIDI-Pipe, I can still select USB-MIDI as input, but MIDI-Pipe does not receive any MIDI signals.
I was able to solve the situation by setting up a new user. Within the new user, MIDI (and MIDI-Pipe and Kontakt) worked well. This was two days ago. Yesterday I had a gig and, after starting my MacBook on the stage, MIDI was gone again. I was able to solve the problem by setting up yet another user, but that was no fun with the whole audience watching...
The second breaking of MIDI was particularly mysterious for me since I have done nothing in between except shutting down the Mac, rebooting it, logging with my old account, doing E-mail, shutting down the Mac and recharge it.
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I've just updated to 10.8.3 and the problem is still there.
Currently I have one user account under which my USB keyboard works as it should, and I have two other accounts on which the keyboard still doesn't work. Please don't tell me to simply use the one account that works, because the other two accounts initially worked, too, and I do not want to risk to once again loose MIDI functionality while I am on stage!
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External USB storage no longer recognized by kernel [SOLVED]

If I plug in an external USB thumb drive, my system no longer sees it.
-gdisk and fdisk do not see it
-gparted cannot see it
-thunar cannot see it
I have a USB mouse and keyboard that work just fine. Here is my dmesg. You can see in the last line that something detected me plugging in the USB thumb drive, but that's it. Is this something with udev or ?
[ 110.596683] usb 1-3: new high-speed USB device number 4 using ehci_hcd
I found this thread but my problem is different from the op's.
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$ uname -r
3.2.6-2-ARCH
Last edited by graysky (2012-02-19 00:44:26)

I know this thread is marked solved, but I have the exact same problem - I just installed the linux-ck package from the AUR (running linux-ck version 3.2.11-1), alongwith the nvidia-ck package. The kernel was compiled with the localmodcfg and BFQ options enabled in the pkgbuild. Now when I plug in an external drive, dmesg detects it, but no device nodes are created under /dev.
There is nothing wrong with the drives (happens with multiple drives) - and they are mounting fine under the stock kernel. lsusb also shows the drive present. I thought this might be an issue with needing to rebuild initramfs using mkinitcpio, but the available hooks seem to include all the usual ones from the stock kernel, nor does the wiki article mention needing to do such a thing. Any ideas?
EDIT: I didn't notice in the OP that the problem persisted with both the -ck kernel and the stock kernel. In my case, it only persists with the -ck kernel - and this happens on two different computers.
Last edited by manzdagratiano (2012-03-16 06:40:27)

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Hi,
Since updating to Mac OS X 10.5.9 my Mac doesn't recognize/accept one of my external USB harddrives--both are Western Digital ones, which I'm using successfully for more than one year now--, and upgrading to Snow Leopard didn't resolve this issue (see console output at the end).
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-- MMHein
PS: Console Message;
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Well, at least momentarily this issue seems to be resolved, although I quite can't grasp all of it.
I've unplugged the external drive in question, both from the USB hub, as well as from the power jack, waited now for two days, until just a couple of minutes reconnecting everything again, starting with the power supply, and after some seconds the USB followed.
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All,
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Hey there W_Ray,
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Check power and cables:
Make sure the USB device is turned on and its cables are properly connected.
Check for missing software:
Make sure you installed the latest software for your device. Visit the manufacturer’s website for any updates.
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In the window that appears, see if the USB device is listed below Hardware in the Contents list. If the device appears but does not work, review the device’s documentation for further troubleshooting steps.
Restart apps:
Quit and restart any apps that use the device.
Restart your Mac:
Choose Apple menu > Restart.
Thank you for using Apple Support Communities.
Take care,
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diesel vdub wrote:
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Like the fact that you just called most of us stupid there

USB Ethernet no longer recognized?

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