1. Enable VG814 to access the Internet via Wi-Fi.
2. Click "Link Backup >> SLA >> SLA >> Add" to add an ICMP detection entry. Set
the IP address to the host address that can be detected over ICMP on the public or
private network, for example, the public IP address 118.122.120.22. Click Apply &
Save.
3. Click "Link Backup >> Track >> Track >> Add" to add a track entry. Select "sla"
for "Type" and "dot11radio1" for "Interface", click Add, and then click Apply &
Save.