This article explains how to test 4G LTE failover on the Datto Networking Appliance (DNA).
The Datto Networking Appliance has the ability to automatically fail over to a 4G LTE cellular network in the event of a WAN interruption. The DNA's Test Failover option allows you to simulate a network interruption to asses the device's performance in 4G LTE mode.
To access the LTE/4G Failover UI, log into the DNA web interface, and click Network Overview, as shown in Figure 1.
Figure 1: Network Overview
You will see the WAN Details card displayed on the right-hand side of the Network Overview page. Click the Test Failover button in the LTE/4G Failover category to begin the test.
Figure 2: WAN Details card
While the test runs, the DNA will display the banner shown in Figure 3. The test can take up to a minute to complete.
Figure 3: Failover mode warning banner
The DNA will return to the WAN connection on its own after the test finishes.