Specifications

SB67080 Expansion Module Installation and Configuration Guide Back to Contents
Troubleshooting 48
PC/Expansion Module Interaction
Internet connection or access to the local network on my computer does not work after installing
the Expansion Module.
My PC is slower now that I have connected it to the LAN through the Expansion Module.
My PC, which is connected to the LAN through the Expansion Module, briefly loses its network
connection.
Probable Cause Corrective Action
The Ethernet cords are not
installed correctly.
 Check that the Ethernet cord from the computer
is plugged into the Expansion Module port
labeled . A second Ethernet cord should be
plugged into the Ethernet port on the Expansion
Module marked with the other end
plugged into your LAN.
Probable Cause Corrective Action
A computer connected
through the Expansion
Module will be limited to 100
Mbits/s.
 Use separate Ethernet connections for the
Expansion Module and the computer so that the
computer can take advantage of the network’s
greater bandwidth.
Probable Cause Corrective Action
For PCs connected to the
LAN through Expansion
Modules, disruption to the
Expansion Module operation
affects the PC. For example,
when the Expansion Module
restarts (possibly due to a
software upgrade) the
connection to the LAN is
temporarily lost.
 If the PC is connected to the LAN through the
Expansion Module, avoid updating software or
restoring the Expansion Module settings when a
user is at the workstation.
 If the PC is connected to the Expansion Module,
and if the PC is connected to an Uninterruptible
Power Supply (UPS), plug the Expansion Module
into a UPS.
 Use separate Ethernet connections for the
Expansion Module and the computer.