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.
ifconfig -a shows the following;
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
          inet6 fe80::1240:f3ff:fe83:bd3e%en0 prefixlen 64 scopeid 0x4
          inet 192.168.1.185 netmask 0xffffff00 broadcast 192.168.1.255
          media: autoselect
          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

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[ 96.073813] sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
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[ 116.032595] sd 4:0:0:0: [sdb]
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[ 116.032605] sd 4:0:0:0: [sdb]
[ 116.032608] Sense Key : 0x3 [current]
[ 116.032615] sd 4:0:0:0: [sdb]
[ 116.032618] ASC=0x12 ASCQ=0x0
[ 116.032623] sd 4:0:0:0: [sdb] CDB:
[ 116.032626] cdb[0]=0x28: 28 00 57 54 52 ee 00 00 08 00
[ 116.032640] end_request: I/O error, dev sdb, sector 1465144046
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[ 116.032655] Buffer I/O error on device sdb2, logical block 1269825777
[ 116.032660] Buffer I/O error on device sdb2, logical block 1269825778
[ 116.032665] Buffer I/O error on device sdb2, logical block 1269825779
[ 116.032669] Buffer I/O error on device sdb2, logical block 1269825780
[ 116.032673] Buffer I/O error on device sdb2, logical block 1269825781
[ 116.032678] Buffer I/O error on device sdb2, logical block 1269825782
[ 116.032682] Buffer I/O error on device sdb2, logical block 1269825783
[ 116.192558] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.192568] sd 4:0:0:0: [sdb]
[ 116.192572] Result: hostbyte=0x00 driverbyte=0x08
[ 116.192577] sd 4:0:0:0: [sdb]
[ 116.192580] Sense Key : 0x3 [current]
[ 116.192586] sd 4:0:0:0: [sdb]
[ 116.192589] ASC=0x12 ASCQ=0x0
[ 116.192594] sd 4:0:0:0: [sdb] CDB:
[ 116.192597] cdb[0]=0x28: 28 00 0b a4 51 3f 00 00 08 00
[ 116.192610] end_request: I/O error, dev sdb, sector 195318079
[ 116.192617] Buffer I/O error on device sdb1, logical block 195318016
[ 116.349174] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.349186] sd 4:0:0:0: [sdb]
[ 116.349191] Result: hostbyte=0x00 driverbyte=0x08
[ 116.349196] sd 4:0:0:0: [sdb]
[ 116.349199] Sense Key : 0x3 [current]
[ 116.349206] sd 4:0:0:0: [sdb]
[ 116.349209] ASC=0x12 ASCQ=0x0
[ 116.349214] sd 4:0:0:0: [sdb] CDB:
[ 116.349217] cdb[0]=0x28: 28 00 57 54 52 ee 00 00 01 00
[ 116.349230] end_request: I/O error, dev sdb, sector 1465144046
[ 116.509279] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.509291] sd 4:0:0:0: [sdb]
[ 116.509295] Result: hostbyte=0x00 driverbyte=0x08
[ 116.509300] sd 4:0:0:0: [sdb]
[ 116.509304] Sense Key : 0x3 [current]
[ 116.509311] sd 4:0:0:0: [sdb]
[ 116.509314] ASC=0x12 ASCQ=0x0
[ 116.509319] sd 4:0:0:0: [sdb] CDB:
[ 116.509322] cdb[0]=0x28: 28 00 57 54 52 ef 00 00 07 00
[ 116.509336] end_request: I/O error, dev sdb, sector 1465144047
[ 116.669240] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.669249] sd 4:0:0:0: [sdb]
[ 116.669253] Result: hostbyte=0x00 driverbyte=0x08
[ 116.669258] sd 4:0:0:0: [sdb]
[ 116.669261] Sense Key : 0x3 [current]
[ 116.669267] sd 4:0:0:0: [sdb]
[ 116.669270] ASC=0x12 ASCQ=0x0
[ 116.669275] sd 4:0:0:0: [sdb] CDB:
[ 116.669278] cdb[0]=0x28: 28 00 0b a4 51 3f 00 00 08 00
[ 116.669291] end_request: I/O error, dev sdb, sector 195318079
[ 116.825843] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.825852] sd 4:0:0:0: [sdb]
[ 116.825856] Result: hostbyte=0x00 driverbyte=0x08
[ 116.825860] sd 4:0:0:0: [sdb]
[ 116.825863] Sense Key : 0x3 [current]
[ 116.825870] sd 4:0:0:0: [sdb]
[ 116.825873] ASC=0x12 ASCQ=0x0
[ 116.825877] sd 4:0:0:0: [sdb] CDB:
[ 116.825880] cdb[0]=0x28: 28 00 0b a4 51 fe 00 00 08 00
[ 116.825892] end_request: I/O error, dev sdb, sector 195318270
[ 116.982587] sd 4:0:0:0: [sdb] Unhandled sense code
[ 116.982599] sd 4:0:0:0: [sdb]
[ 116.982603] Result: hostbyte=0x00 driverbyte=0x08
[ 116.982608] sd 4:0:0:0: [sdb]
[ 116.982611] Sense Key : 0x3 [current]
[ 116.982618] sd 4:0:0:0: [sdb]
[ 116.982621] ASC=0x12 ASCQ=0x0
[ 116.982626] sd 4:0:0:0: [sdb] CDB:
[ 116.982629] cdb[0]=0x28: 28 00 0b a4 51 e7 00 00 08 00
[ 116.982642] end_request: I/O error, dev sdb, sector 195318247
[ 117.139178] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.139189] sd 4:0:0:0: [sdb]
[ 117.139193] Result: hostbyte=0x00 driverbyte=0x08
[ 117.139198] sd 4:0:0:0: [sdb]
[ 117.139201] Sense Key : 0x3 [current]
[ 117.139208] sd 4:0:0:0: [sdb]
[ 117.139211] ASC=0x12 ASCQ=0x0
[ 117.139216] sd 4:0:0:0: [sdb] CDB:
[ 117.139219] cdb[0]=0x28: 28 00 0b a4 51 fe 00 00 01 00
[ 117.139232] end_request: I/O error, dev sdb, sector 195318270
[ 117.295904] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.295913] sd 4:0:0:0: [sdb]
[ 117.295917] Result: hostbyte=0x00 driverbyte=0x08
[ 117.295922] sd 4:0:0:0: [sdb]
[ 117.295925] Sense Key : 0x3 [current]
[ 117.295932] sd 4:0:0:0: [sdb]
[ 117.295935] ASC=0x12 ASCQ=0x0
[ 117.295940] sd 4:0:0:0: [sdb] CDB:
[ 117.295943] cdb[0]=0x28: 28 00 0b a4 51 ff 00 00 07 00
[ 117.295955] end_request: I/O error, dev sdb, sector 195318271
[ 117.452511] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.452520] sd 4:0:0:0: [sdb]
[ 117.452524] Result: hostbyte=0x00 driverbyte=0x08
[ 117.452529] sd 4:0:0:0: [sdb]
[ 117.452532] Sense Key : 0x3 [current]
[ 117.452538] sd 4:0:0:0: [sdb]
[ 117.452541] ASC=0x12 ASCQ=0x0
[ 117.452546] sd 4:0:0:0: [sdb] CDB:
[ 117.452549] cdb[0]=0x28: 28 00 0b a4 51 e7 00 00 08 00
[ 117.452562] end_request: I/O error, dev sdb, sector 195318247
[ 117.609238] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.609247] sd 4:0:0:0: [sdb]
[ 117.609251] Result: hostbyte=0x00 driverbyte=0x08
[ 117.609256] sd 4:0:0:0: [sdb]
[ 117.609258] Sense Key : 0x3 [current]
[ 117.609265] sd 4:0:0:0: [sdb]
[ 117.609268] ASC=0x12 ASCQ=0x0
[ 117.609273] sd 4:0:0:0: [sdb] CDB:
[ 117.609275] cdb[0]=0x28: 28 00 0b a4 52 06 00 00 08 00
[ 117.765841] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.765849] sd 4:0:0:0: [sdb]
[ 117.765853] Result: hostbyte=0x00 driverbyte=0x08
[ 117.765858] sd 4:0:0:0: [sdb]
[ 117.765861] Sense Key : 0x3 [current]
[ 117.765867] sd 4:0:0:0: [sdb]
[ 117.765870] ASC=0x12 ASCQ=0x0
[ 117.765875] sd 4:0:0:0: [sdb] CDB:
[ 117.765877] cdb[0]=0x28: 28 00 00 00 00 3f 00 00 08 00
[ 117.922568] sd 4:0:0:0: [sdb] Unhandled sense code
[ 117.922576] sd 4:0:0:0: [sdb]
[ 117.922580] Result: hostbyte=0x00 driverbyte=0x08
... (errors repeat)
If I try to 'mount' it as root I get:
mount: wrong fs type, bad option, bad superblock on /dev/sdb2,
missing codepage or helper program, or other error
In some cases useful info is found in syslog - try
dmesg | tail or so.
The drive is OK. I was able to use it on other computers, reiserfsck showed no errors. Also my computer is OK, and I was able to mount the drive using some old arch linux cd.
The system is 64-bit, I use the default kernel (3.9.2-1-ARCH x86_64). I wonder, what could be missing in my configuration?
I'm able to use other USB pendrives, hard disks, mouse with no problems
Last edited by senjin (2013-05-12 10:27:29)

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