Loadbelance with multi wan

[swt]

Dear All
i am from Myanmar
i have 2 internet line one is static IP and another is DHCP from difference ISP
all of internet connection is deny ICMP packet to GW and ISP DNS server and also can't use ping , tracert , pathping command to www.google.com
i already configuration @ pfsense only loadbelance configuration
but status of Status: Load Balancer: Pool is always "off line"
please let me know how to use the wan address monitor IP to using nslookup of ISP DNS server
please see image

regards
SWT