Edimax RA21S User Manual page 19

3.
Select "Obtain an IP address automatically" or "Use the following IP
address" for your RG21S/RA21S. If you are using a static IP, enter the IP
address, subnet mask and default gateway. Click "Next" to proceed to the
next step.
"Obtain an IP address automatically" is the recommended setting
for most users. For more guidance on static IP addresses, please
refer to
4.
Enter a name and password for your 2.4GHz & 5GHz wireless networks,
then click "Next" to continue.
IV-1. Configuring your IP address.
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