Najprije nađi kako se definira Static Route na WRT - u pa potom na SX - u dodaj:
Static Route 0.0.0.0 (svi), Subnet=255.255.255.0, Gateway=ip adresa ZTE - a,
jednako tako u SX - u manualno definiraj DNS - ove i to DNS1=ip adresa ZTE - a, DNS2=80.80.50.3.