TP-Link TL-MR6400 User Manual page 105

Connect Automatically - The connection can be re-established automatically when it was

down.
Connect Manually - You can click the Connect/Disconnect button to connect/disconnect

immediately. This mode also supports the Max Idle Time function as Connect on Demand
mode. After a specified period of inactivity (Max Idle Time), the router will disconnect from
your Internet connection, and you will not be able to re-establish your connection
automatically as soon as you attempt to access the Internet again. To use this option, click
the radio button. If you want your Internet connection to remain active at all times, enter "0"
in the Max Idle Time field. Otherwise, enter the number in minutes that you wish to have
the Internet connecting last unless a new link is requested.
Click the Connect button to connect immediately. Click the Disconnect button to
disconnect immediately.
Caution: Sometimes the connection cannot be terminated although you specify a time to Max
Idle Time because some applications are visiting the Internet continually in the background.
Click the Save button to save your settings.
5. If your ISP provides L2TP connection, please select L2TP/Russia L2TP option. And you
should enter the following parameters (
TL-MR6400 300Mbps Wireless N 4G LTE Router
):
Figure 5-8
Figure 5-8 WAN –L2TP
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