ETHUSB Ethernet not communicating on Mac OS X 10.7 or above

The following is a brief overview of the steps to verify that the USBETH is installed correctly—for more detailed instructions, click to open App Note 280 – ETHUSB Not Communicating on Mac.

NOTE: The following information applies to older systems. The current version ETHUSB is a different model.

1. Download and install at least version 4.0.0 of the driver for the adapter from this website. The driver should be appropriate for the Mac operating system being used.

• Asix makes the chip inside many brands of this adapter, the AX88772
• http://www.asix.com.tw/products.php?op=pItemdetail&PItemID=86;71;101
• To install, standard Mac practice (mount .dmg, double click the .pkg, follow instructions…will require a computer restart).

2. After computer reboots, verify that the adapter is recognized.

• Open System Profiler. Connect ETHUSB. In USB tab, verify that the adapter appears:

3. Go to Software > Extensions and search for AX88772 in the list and verify that version 4.0.0 is installed:

4. Configure the network. Open System Preferences > Network. Select “USB Ethernet” to adjust the adapter settings. Set them to the following manual settings:

• Configure: Manually
• IP: 169.254.142.1
• Subnet Mask: 255.255.0.0

5. Optional: Adjust the network ordering such that USB Ethernet is first on the list.

a)       Go to the “gear” at the bottom of the list and choose “Set Service Order” from the list.

b)      In the dialog, drag “USB Ethernet” above Ethernet in the list.

c)       Click OK and close System Preferences to apply the network settings.

6. Turn on the MP150 (or power cycle it if it was on).

7. Check the amber light on the ETHUSB.

• The amber light should turn on when the MP150 is on and may blink periodically but should generally be solid amber.

8. Launch AcqKnowledge.

• It should now be possible to establish communications with the MP150.

For Mac OS X 10.8 or above

• In section (2), the driver version will be listed as 1.0.0 if the 10.9 driver is installed.
• Add the following intermediate steps:

a)       (2.5) Now the USB network interface must be added (10.9+). Open System Preferences > Network. Click on the “+” in the lower left to “Create a new service.

b)      In the next dialog that appears, select the “USB Ethernet” interface and give it a default service name. “USB Ethernet” will now be available in the list in the main dialog.

c)       (3.5) Unlike previous operating systems, when the cable is connected it will show up as functional with an MP150 when it has a yellow dot.