anyone help please

#1
i hold a tata indicom wimax connection, i now i configured it to a wifi router -AIRLINK 101-model AR670W but i could not able to configure that, i have taken care of the basic settings like IP address, Subnet mask, default gateway, DNS address, in the internet setup,in the network setup i have also configured the settings and the Ip address configured as 192.168.1.2. but i could able to access the internet, can any one help please, i am using a Static IP wimax Connection.