D-Link DIR-620 User Manual page 26

DIR-620 Wireless N300 Router with 3G/CDMA/LTE Support
and USB Port
User Manual
6. Select the Obtain an IP address automatically and Obtain DNS server address
automatically radio buttons. Click the OK button.
Figure 11. The Internet Protocol Version 4 (TCP/IPv4) Properties window.
7. Click the OK button in the connection properties window.
Now your computer is configured to obtain an IP address automatically.
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Installation and Connection