TP-LINK TL-MR3420 Manual Do Utilizador

 

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3G/4G Only 

In this mode, the Router will try 3G/4G access only. WAN access is disabled. 

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3G/4G Preferred 

In this mode, the Router will try 3G/4G access first; 

When 3G/4G access fails and WAN access is valid, or when no 3G/4G USB modem is 

inserted, the Router would switch to WAN access; 

When the Router succeeds to connect to the 3G/4G network, the Router would stop the 

WAN connection and switch back to 3G/4G access immediately. 

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WAN Preferred 

In this mode, the Router will try WAN access first; 

When the WAN access fails, and 3G/4G access is valid, the Router would switch to 3G/4G 

access; 

When the Router succeeds to connect to the WAN network, the Router would stop the 

3G/4G connection and switch back to WAN access immediately. 

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WAN Only 

In this mode, the Router will try WAN access only. 3G/4G access is disabled. 

Click the Save button to save your settings. 

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1.  If you are using the 3G/4G Preferred or WAN Preferred, the Router would connect, 

disconnect or switch the current access automatically. The Connect/Disconnect button 
(on 3G/4G, PPPoE, PPTP, L2TP) and some related parameters could not be set manually.   

2.  Only when the WAN connection is Dynamic IP, Static IP or PPPoE can the Router support 

the switch between 3G/4G mode and WAN mode.   

Choose menu “Network→3G/4G”, you can configure parameters for 3G/4G function on the 

screen below. To use the 3G/4G function, you should first insert your USB modem on the USB 

port of the Router. There is already much 3G/4G USB modem information embedded in the 

Router. The USB modem parameters will be set automatically if the card is supported by the 

Router. If your USB modem inserted is supported by the Router, then “Identify successfully” 

will display in the 3G/4G USB Modem field as shown in Figure 4-6.  

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3G/4G settings are unavailable when the Internet Access mode is set to WAN Only mode. Please 

change settings on 

 if you want to use 3G/4G. 

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