Enable Legacy Mode

Enabling legacy mode allows devices using 802.11b (very old) wireless cards to connect to your devices. If you enable this and a device with a legacy card connects, you will notice a significant decrease in your network speed.

To enable legacy mode, follow these steps:

Head into your location in the dashboard and click devices on the left sidebar.
Click the action button to the right of the device you want to make changes to and select Edit.
Scroll down to Advanced Radio Settings and tick the box next to Legacy Mode.