TP-Link Archer C20 User Manual page 41

Enable IGMP Proxy - IGMP (Internet Group Management Protocol) is used to manage
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multicasting on TCP/IP networks. Some ISPs use IGMP to perform remote configuration for
client devices, such as the modem router. The default value is enabled, and if you are not
sure, please contact your ISP or just leave it.
Always on - In this mode, the Internet connection will be active all the time.
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Connect on Demand - In this mode, the Internet connection can be terminated automatically
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after a specified inactivity period (Max Idle Time) and be re-established when you attempt to
access the Internet again. Enter the number of minutes you want to have elapsed before your
Internet access disconnects.
Connect Manually - You can click the Connect/Disconnect button to connect/disconnect
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immediately. This mode also supports the Max Idle Time function as Connect on Demand
mode. The Internet connection can be disconnected automatically after a specified inactivity
period and re-established when you attempt to access the Internet again.
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 (Figure 4-8):
Archer C20 AC750 Wireless Dual Band Router
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