Tenda FH1202 User Manual page 33

technical support of either your ISP or Tenda suggests changing the MTU value.
Below web-based applications might require an MTU change:

A secure website that does not open, or displays only part of a web
page

Yahoo email

MSN portal
B. You use VPN and encounter serious performance problem s.
C. You used a program to optimize MTU for performance reasons, and now you
have connectivity or performance problems.
If you suspect an MTU problem, try changing the MTU to 1400. If this does not help, gradually
reduce the MTU from the maxi mum value of 1500
The common MTU sizes and applications are listed in the table below.
MTU
1500
1492
1472
1468
1436
Note -------------------------------------------------------------------------------------
A wrong/i mproper MTU val ue ma y cause Internet co mm unication problems. For e xa mple, you
ma y be unable to access cer tain websites, fra mes within websites, secure login pa ges, or FTP
or P OP servers.
------------------------------------------------------------------------------------------------
until the problem disappears.
Application
Typical for connections that do not use PPPoE or
VPN.
Used in PPPoE environments.
Maximum size to use for pinging. (La rger packets
are fragmented.)
Used in some DHCP environments.
Used in PPTP environments or with VPN.
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