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Table 3. Common MTU sizes
ApplicationMTU
The largest Ethernet packet size. This setting is typical for connections that do not use PPPoE
or VPN and is the default value for NETGEAR modem routers, adapters, and switches.
1500
Used in PPPoE environments.1492
Maximum size to use for pinging. (Larger packets are fragmented.)1472
Used in some DHCP environments.1468
Usable by AOL if you do not send or receive large email attachments, for example.1460
Used in PPPoA environments.1458
Used in PPTP environments or with VPN.1436
Maximum size for AOL DSL.1400
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 a web browser from a computer or WiFi device that is connected to the network.
2. Enter http://www.routerlogin.net.
A login window opens.
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.
The BASIC Home page displays.
4. Select ADVANCED > Setup > WAN Setup.
The WAN Setup page displays.
Manage the Internet Settings Manually
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Nighthawk X4S AC2600 WiFi VDSL/ADSL Modem Router Model D7800