TP-Link TL-MR3020 User Manual page 47

3G/4G Only (Recommended)
In this mode, the router will try 3G/4G access only. WAN access is disabled.
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.
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.
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.
Note:
1) In 3G/4G preferred and WAN preferred modes, until 2010-5-18, the failover/backup function
only works between 3G/4G link and PPPoE / Dynamic IP / Static IP.
2) The failover/backup feature between 3G/4G link and BigPond Cable / PPTP / L2TP will be
available in the near future. Please visit our website to download the latest firmware:
http://www.tp-link.com/support/download.asp
3) 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.
TL-MR3020
Figure 4-5 Internet Access Mode
-36-
Portable 3G/4G Wireless N Router