Table 11-2. Troubleshooting Common Symptoms
Symptom
Probable Cause
Troubleshooting Procedure / Corrective
Action
No LED lit on any port
No power to unit
Check power supply to ensure that uninterruptible
power supply (UPS) (if applicable) is operating
correctly.
Power supply fuse(s) are
blown
Remove and replace fuse(s) . See
Loss of ground
connection
6.5. Making Ground and Power Connections
and re-attach the ground wires.
Loose power cabling to unit
Check that the unit's external power cables are
securely fastened.
No Ethernet Traffic (PTP or
NTP) between GridTime 3000
Server and client(s)
(If ACT LED for port is OFF)
Cable connections
Check that cables and SFP transcievers are
securely connected to the device.
Verify that the SFP transciever model in use is
supported
Ethernet auto-negotiation not
enabled on a device between
Server and client.
Check that Ethernet auto-negotiation is enabled
on all connected network elements.
No Ethernet Traffic (PTP or
NTP) between GridTime 3000
Server and client(s)
(If ACT LED for port is ON)
Incorrect virutal LAN (VLAN)
configuration.
Verify that VLAN configuration is enabled correct
in the VLAN tab of the Ethernet Timing Ports
window in the CMT. See
Incorrect IP address
configuration
Verify that the server IP configuration is correct
in the Ethernet Timing Port Basic settings window
in the CMT
9.5. Provisioning the Ethernet Ports
,
and ensure it is on the same subnet as the
client(s).
Client configuration for server
is incorrect
Verify that the client settings match the server's
settings.
PTP domain setting for server
do not match client’s domain
Verify the domain setting for each server matches
the domain setting for the client.
This setting can be found in the PTP Tab of the
Ethernet Timing Ports
Upgrading firmware failed
Internal memory has failed
Retry the upgrade. If upgrade fails again, Contact
Microchip technical support.
11.10. Contacting Technical Support
Corrupt firmware package
Redownload the latest firmware package from
and retry the upgrade
Maintenance and Troubleshooting
©
2022 Microchip Technology Inc.
and its subsidiaries
Manual
DS00004572A-page 223
