Lantronix SISPM1040-xxxx-L3 Install Guide
33855 Rev. A https://www.lantronix.com/ 29
Troubleshooting
Basic Troubleshooting
1. Make sure your switch model supports the feature or function attempted; see Features on page 6 and check
the Release Notes for your particular firmware version.
2. Verify the install process; see Installing the Switch on page 14.
3. Verify the initial switch configuration; see Initial Switch Configuration on page 27.
4. Troubleshoot connected network devices to pinpoint the problem to the switch.
5. Run the System Diagnostics. See the Web User Guide or the CLI Reference.
6. Reset the switch; see Reset Button on page 13.
7. Restore the switch to its factory default settings; see Reset Button on page 13.
8. If using the CLI, try configuring via the Web UI and vice versa. See the Web User Guide or the CLI
Reference.
PoE Troubleshooting
1. Note that PoE devices initially draw more power during their boot up sequence than during normal operation.
2. Turn LLDP off and turn CDP on.
3. Verify that PoE capability is enabled for the interface.
4. Make sure the cable is properly seated in the port socket.
5. Ensure that you have the right and qualified Cat 5 or above Ethernet cable plugged into the right port on the
PD, and that the length of the Ethernet cable is not over 100m.
6. Confirm the power supply mode (Alternative A vs. Alternative B) with the PD vendor. Note that PoE support
requires a DC power supply. AC power alone can be used to power the switch for data only (no PoE
available).
7. For PD power up failures or power cycling, verify that the power supply is set to Vout of 56V. See Power
Supply on page 22.
To Next Page
Loading...
Need help?
General
