Specify Your Internet Settings 
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N900 WiFi Router 
Note: 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.
 To change the MTU size:
1.  Launch a web browser from a computer or wireless device that is connected to the 
network.
2.  T
ype http://www.routerlogin.net or http://www.routerlogin.com.
A login screen displays.
3.  Enter the 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 screen displays.
4.  Select ADV
ANCED > Setup > WAN Setup. 
5.  In the MTU Size field, enter a value from 64 to 1500.
6.  Click the Apply button.
Your settings are saved.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are 
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500