Step 1: Click the Apple logo in the top left corner of your screen.  Click SystemPreferences… and then Network under the Internet and Wireless section.

Step 2: Select Ethernet in the left pane.  Under ConfigureIPv4 select Manually.  Assign the adapter the following IP address then click Apply.

IP Address: 192.168.10.10
Subnet Mask: 255.255.255.0

After you have configured the TEW-737HRE return the Configure IPv4 setting back to Using DHCP.