72 S&C Instruction Sheet 461-509
Remote Web Access
The Remote Web Access toggle button enables Web-user interface access via Ethernet
Port 2. This con guration setting can only be updated by the admin user and only after
the admin user has changed the default password. Web access via Ethernet Port 2 is also
controlled by a DNP3 binary output setpoint, which must also be enabled to allow this
traf c. See Figure 68. See the “Enabling Remote Web Access” section on page 73.
NOTICE
If a SpeedNet™ Radio is being used for the field area network radio, the remote
Web user’s computer will require an additional setting to be updated to enable
Web access. The user must reduce the MTU (maximum transmission unit) size to
a value of 500 or lower. S&C recommends using an MTU size of 500 for optimal
performance. To change the MTU size, the following command can be used on
a Windows 10 machine: netsh interface ipv4 set subinterface “Local Area
Connection” mtu=500 store=persistent.
Figure 68. The Remote Web Access toggle button.
Con guring the Communications Gateway
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