3com PS Hub 40 User Manual
8
P
ROBLEM
S
OLVING
The PS Hub has been designed to aid you when detecting and solving
possible problems with your network. These problems are rarely serious,
the cause is usually a disconnected or damaged cable, or incorrect
configuration. If this chapter does not solve your problem, contact your
supplier for information on what to do next.
possible problems with your network. These problems are rarely serious,
the cause is usually a disconnected or damaged cable, or incorrect
configuration. If this chapter does not solve your problem, contact your
supplier for information on what to do next.
Perform these actions first:
■
Ensure all equipment is powered on.
■
Power each hub off, wait about 5 seconds and then power them on
so they perform a self test. The self test only takes a few seconds,
during which the Power/Self Test LED flashes.
so they perform a self test. The self test only takes a few seconds,
during which the Power/Self Test LED flashes.
If you have a problem using Quick Config Manager, refer to “Solving
Problems With Quick Config Manager” on page B-29.
If you have a problem with the serial web utility, refer to “Solving
Problems With the Serial Web Utility” on page C-4.
If you have a problem using the agent upgrade utility, refer to “Solving
Problems With the Agent Upgrade Utility” on page D-3.
Problems With Quick Config Manager” on page B-29.
If you have a problem with the serial web utility, refer to “Solving
Problems With the Serial Web Utility” on page C-4.
If you have a problem using the agent upgrade utility, refer to “Solving
Problems With the Agent Upgrade Utility” on page D-3.
Isolating a Problem
A good way of isolating a problem is to see whether it occurs on a
particular port only. This can be done by:
particular port only. This can be done by:
■
Using a different port to see if the problem still exists.
■
Using management to view how a port has been set up. In
particular, see if the port is:
particular, see if the port is:
■
Partitioned because of a network loop
■
Disabled by management
■
Part of a resilient link pair
■
Performing security