Troubleshooting
This section describes how to troubleshoot the switch. For more information,
see the chapter "Troubleshooting" in the HP 1810 Switch Series Management
and Configuration Guide, available on the HP Web site,
http://www.hp.com/networking/support.
This chapter describes the following:
■
basic troubleshooting tips
diagnosing with the LEDs
■
■
forgotten the IP address or password
■
testing the switch by resetting It
HP Customer Support Services
■
Basic Troubleshooting Tips
Common problems and their solutions are listed in the following table.
Problem
Switch fails Power-On Self
Test (POST)
Link light does not light when
a cable is connected.
(page
4-1)
(page
4-2)
(page
4-4)
(page
4-5)
(page
4-5)
Resolution
Troubleshoot using the LEDs. See
the LEDs" on page 4-2
The switch may be enabled in Green Mode, where port
Link LEDs would be off.
Look for loose or obviously faulty connections. If they
appear to be OK, make sure the connections are snug. If
that does not correct the problem, try a different cable.
4
"Diagnosing with
4-1