Allied Telesis AT-WA1004G - Manual (Page 54)

PC Configuration
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— If necessary, use the Up button to make the Wireless Router
the first entry in the Gateways list.
Figure 16 Windows NT 4.0 - Add Gateway
2. The DNS should be set to the address provided by your ISP, as
follows:
— Click the DNS tab.
— On the DNS screen, shown below, click the Add button (under
DNS Service Search Order), and enter the DNS provided by
your ISP.
Figure 17 Windows NT4.0 - DNS