Setup WiFi on the Dlink DIR-866L

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Setup Router Staff
(Last Updated: ) | Reading Time: 3 minutes

The Dlink DIR-866L router is considered a wireless router because it offers WiFi connectivity. WiFi, or simply wireless, allows you to connect various devices to your router, such as wireless printers, smart televisions, and WiFi enabled smartphones.

Other Dlink DIR-866L Guides

This is the wifi guide for the Dlink DIR-866L.We also have the following guides for the same router:

WiFi Terms

Before we get started there is a little bit of background info that you should be familiar with.

Wireless Name

Your wireless network needs to have a name to uniquely identify it from other wireless networks. If you are not sure what this means we have a guide explaining what a wireless name is that you can read for more information.

Wireless Password

An important part of securing your wireless network is choosing a strong password.

Wireless Channel

Picking a WiFi channel is not always a simple task. Be sure to read about WiFi channels before making the choice.


You should almost definitely pick WPA2 for your networks encryption. If you are unsure, be sure to read our WEP vs WPA guide first.

Login To The Dlink DIR-866L

To get started configuring the Dlink DIR-866L WiFi settings you need to login to your router. If you are already logged in you can skip this step.

To login to the Dlink DIR-866L, follow our Dlink DIR-866L Login Guide.

Find the WiFi Settings on the Dlink DIR-866L

If you followed our login guide above then you should see this screen.

router status mac address internet IP
This is the status page from your Dlink router.

We begin this wireless setup guide on the DEVICE INFORMATION page of the Dlink DIR-866L router. Start off by clicking SETUP near the top of the page. Then click WIRELESS SETTINGS in the left hand sidebar.

Change the WiFi Settings on the Dlink DIR-866L

router wifi security wireless
This is the wifi security page from your Dlink router.

You should be taken to the page you see here.

Begin by making sure you're on the 2.4GHz Band.

Now be sure that the box labeled Enable Wireless is checked.

After that you need to set a Wireless Network Name. This can be whatever you want. However, due to security reasons we strongly suggest that you avoid any sort of personal information. To learn more see our Wireless Names Guide.

Then make sure the Wireless Channel is set to either 1, 6, or 11. To find out why these are the best options read our WiFi Channels Guide.

Open the drop down menu labeled Security Mode and choose WPA-Personal. Following that set the WPA Mode to WPA2 only. This will provide you with the best security. For more information check out our WEP vs. WPA Guide.

Now make sure that the Cipher Type is set to AES.

Finally you need to set a Pre-Shared Key. This will serve as your network password and can be anything you like. However, bear in mind that a strong password consists of 14-20 characters and includes no personal information. For more help take a look at our Choosing a Strong Password Guide.

Congratulations! You're done. Just don't forget to click Save Settings before closing the page.

Possible Problems when Changing your WiFi Settings

After making these changes to your router you will almost definitely have to reconnect any previously connected devices. This is usually done at the device itself and not at your computer.

Other Dlink DIR-866L Info

Don't forget about our other Dlink DIR-866L info that you might be interested in.

This is the wifi guide for the Dlink DIR-866L.We also have the following guides for the same router: