Step 1: Open your web browser and enter http://dlinkrouter.local in the URL section.
Step 2: Enter Admin in the user ID field. Now, enter the password. In case you have not made any changes in the default password, then you should leave the password field empty. Now, click on login.
Step 3: Go to the Wireless tab and click on it. Now, select the wireless repeater from the left side of the menu.
Step 4: Take a look at the checkbox of repeater enabled. Go to the survey website to view the available AP for selection. Choose the desired AP and select Next to continue forward.
Step 5: Enter the pre-shared key in the section and select next to continue forward.
Step 6: Enter the IP address in the given field. Please make sure that the IP address that you used is in the same range as the IP address of the main router.
Step 7: Select OK to move forward.
Step 8: Select finish to end the process of configuration. Also, you must restart your computer system to obtain the the new IP address.
The network name of the repeater will not be any different from the previous one. Now, login by entering the pre-shared key and the network name. You can also see the guide for changing the network name and password.
How to Set up Repeater Mode on DLink Router?