Zte MF275U User Manual page 12

NOTE：Your service provider gives you the User Name and Password.
 Please select Static, input all the parameters, and then click Apply.
NOTE：Your service provider gives you the static address information.
 Please select DHCP, and then click Apply.
NOTE：Your service provider does not give you any parameters.

For Wireless Broadband mode
10 Confidential and Proprietary Information of ZTE CORPORATION