8PROBLEM SOLVING
The PS Hub has been designed to aid you whe n detecting and solving
possible problems with your network. These problems are rarely serious,
the cause is usually a disconnected or dam aged cable, or incorrect
configuration. If this chapter does no t solve your problem, contact your
supplier for information on what to do ne xt.
Perform these action s 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.
If you have a problem using Quick Co nfig Manager, refer to “Solving
Problems With Quick Config Manager” on page B-29.
If you have a problem with the serial w eb utility, refer to “Solving
Problems With the Serial Web Utility” on page C-4.
If you have a problem using the agent upgrad e 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 w hether it occurs on a
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:
■Partitioned because of a network loop
■Disabled by management
■Part of a resilient link pair
■Performing security