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Manage the Internet Settings Manually
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AC1200 WiFi DSL Modem Router—Essentials Edition Model D6100
Change the MTU Size
WARNING:
An incorrect MTU setting can cause Internet communication
problems. For example, you might not be able to access certain
websites, frames within websites, secure login pages, or FTP or
POP servers. Change the MTU only if you are sure that it is
necessary for your ISP connection.
To change the MTU size:
1. Launch an Internet browser from a computer or WiFi device that is connected to the
network.
2. T
ype http://www
.routerlogin.net.
A login screen displays.
3. Enter the modem router user name and password.
The user name is admin.
The default password is
password. The user name and
password are case-sensitive.
4. Click the OK button.
The BASIC Home screen displays.
5. Select ADVANCED > Setup > W
AN Setup.
The WAN Setup screen displays.
6. In the MTU Size field, enter a value from 616 to 1500.
The normal MTU (maximum transmit unit) value for most Ethernet networks is 1500
bytes, 1492 bytes for PPPoE connections, or 1436 for PPTP connections.
7. Click the Apply button.
Your change is saved.