On this page, you can query the connection status and line status of the WAN interface.

WAN Name	Status	IP Acquisition Mode	IP Address	Subnet Mask	VLAN/Priority	MAC Address	Connect
1_INTERNET_R_VID_1	Disconnected	DHCP	--	--	1/0	70:A8:E3:F6:81:CB	AlwaysOn
2_INTERNET_R_VID_1	Disconnected	DHCP	--	--	1/0	70:A8:E3:F6:81:CC	AlwaysOn