AX88772 USB-RJ45 Ubuntu 12.04 - system freeze

Just bought ASIX AX88772 USB-RJ45, and on Ubuntu 12.04 (3.2.0-30-generic-pae) when plugged in and ethernet cable connected - interface changes to ready according to dmesg, and power/link lights show/flash, but system feezes afer a couple of minutes - have to power off.

Hi Jons-

Very sorry to hear your USB ethernet device isn’t working as expected- thanks for posting

I think you have the USB2-e100, can you please verify this is the adapter you have:

We’ve got different chipsets in the USB2-E100 and USB2-E1000, so want to make sure we’re troubleshooting the right chipset as a first step.

Thanks for posting and please let us know which product you have!

Best wishes-

Jeff Everett

It looks like that, I can’t see markings on case but barcode is 0050B60BD225. Dispatched 21/9 via Amazon, packing note says … USB2-E100: 649241909835

Hi Jons-

Thanks for verifying that you have the USB2-E100, which indeed uses the ASIX 88772 chipset.

Can you please verify if you’re using ASIX driver version v4.4.0 released 2012-05-18? I would expect this command to help figure that out:
sudo dmesg | grep Ethernet

If you haven’t already installed the driver version mentioned above, here is a link to download it:…

Here is a thread where we’ve got a good bit of detail on setting up usb ethernet on Ubuntu. The only difference would be in the step where you download the tarball at the beginning, use my link above for the 88772 driver instead of the 88178 driver- which is for the gigabit ethernet adapter instead of the 10/100:…

I sincerely hope this is useful, however please let me know if you’ve any other questions!

Thanks again for posting and best wishes!

Jeff Everett

output is: asix 1-3:1.0: eth1: register ‘asix’ at usb-0000:00:12.2-3, ASIX AX88772 USB 2.0 Ethernet, 00:50:b6:0b:d2:25

  • which may mean something?

The link says that should be just pluggable for linux kernal >= 3.2 rc3, and I’m at 3.2.0-30-generic-pae, so not sure if driver will help? However will try.

Hi again Jon-

After verifying you’re on a stock kernel and double-checking on our 12.04 lab system, I’m thinking you’ve got a bad device.

If you’ll email your amazon order ID and verify your shipping address in a mail to we’ll make things right.

Thanks and best wishes-

Jeff Everett