Troubleshooting – USRobotics 7931 User Manual
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This is one of many possible configurations.
Note: For networking information, refer to your operating system’s documentation.
Register your product online at
http://www.usr.com/productreg
Troubleshooting
My 24-Port 10/100/1000Mbps Switch is properly connected to my
Ethernet-ready device but my connection speed is slow.
Possible Solution:
Verify that your network adapter and/or additional Ethernet-ready device supports 1000 Mbps.
You may be using a 10/100 Mbps device. A blinking orange light indicates you are receiving and
transmitting data at 10/100 Mbps. A blinking green light indicates you are receiving and transmit-
ting data at 1000 Mbps. To achieve 1000 Mbps speeds, replace any 10/100 Mbps devices you are
using with 1000 Mbps devices.
Possible Solution:
Verify you are using a known and reliable RJ-45 Category 5 Ethernet cable. An old or unreliable RJ-
45 Category 5 Ethernet cable could diminish your link quality. It may be necessary to replace your
RJ-45 Category 5 Ethernet cable.
Possible Solution:
The length of your Ethernet cable between your 24-Port 10/100/1000Mbps Switch and your
workstation or computer should not exceed 328 feet. Some power sources with strong
electromagnetic fields may be causing interference.
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U.S. Robotics
10/100/1000 Mbps
24-Port Switch
FDX/HDX
LNK/ACT
LNK/ACT
Green = 1000M Orange = 10/100M
FDX/HDX