Operation Manual

Vigor2926 Series User’s Guide
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adjusted in this page will be invalid.
SIM PIN code Type PIN code of the SIM card that will be used to access
Internet.
The maximum length of the PIN code you can set is 19
characters.
Network Mode Force Vigor router to connect Internet with the mode
specified here. If you choose 4G/3G/2G as network mode,
the router will choose a suitable one according to the actual
wireless signal automatically.
APN Name APN means Access Point Name which is provided and
required by some ISPs. Type the name and click Apply.
The maximum length of the name you can set is 47
characters.
Keep WAN Connection Normally, this function is designed for Dynamic IP
environments because some ISPs will drop connections if
there is no traffic within certain periods of time. Check
Enable PING to keep alive box to activate this function.
Enable PING to Keep alive – If you enable the PING function,
please specify an IP address for the system to PING it for
keeping alive. Vigor system will send a packet per second to
the specified IP address. If the system does not receive any
reply from that IP within 10 seconds, Vigor system will reboot
LTE module until successfully set LTE connection.
 PING to the IP – Enter an IP address.
Connection Latency Check - Enable the latency time setting
for packet reply. If it is enabled (checked), Vigor system will
wait for the packet reply from the specified IP address.
When the time of waiting packet reply reaches the time
threshold (defined in Latency) and continues for a period of
time (defined in Latency Duration), Vigor system will reboot
LTE module until successfully set LTE connection.
 Latency – Set a time threshold for packet reply. Default
value is 800 (unit: micro-second).
 Latency Duration – Set a time period. Default value is
60 (unit: second).
MTU It means Max Transmit Unit for packet.
Path MTU Discovery – It is used to detect the maximum MTU
size of a packet not to be segmented in specific transmit
path.
Click Choose IP to open the following dialog.
 Path MTU to – Type the IP address as the specific
transmit path.
 MTU reduce size by – It determines the decreasing size
of MTU value. For example, the number specified in