Troubleshooting; Device Detection Issues; Issue: Installer App Shows "Cross Domain Traffic Reported; Issue: Device Communications Led Is Solid Amber - enphase Envoy-S Installation And Operation Manual

Troubleshooting

The following sections describe possible problems and solutions.
WARNING: Risk of electric shock. Risk of fire. Do not attempt to repair the IQ
Gateway; it contains no user-serviceable parts. Tampering with or opening the IQ
Gateway will void the warranty. If the IQ Gateway fails, contact Enphase Customer
Support for assistance (enphase.com/global/support-request). Warranty void if cover
removed. Refer servicing to qualified personnel.

Device Detection Issues

Troubleshoot power line communication issues as follows.

Issue: Installer App Shows "Cross Domain Traffic Reported"

This means that communications from another IQ Gateway(s) have been detected. To prevent this issue:
•
When multiple IQ Gateway units exist on a common switchboard or transformer,
commission only one IQ Gateway system at a time during installation.
•
When multiple IQ Gateway units on a common switchboard, use power line filters and
separate the conduits and wires by at least 32 cm (12 inches).
If this alert persists or if the Installer App Devices screen (or Enphase Installer App) shows more
devices than expected, contact Enphase Customer support at enphase.com/global/support-request.

Issue: Device Communications LED is Solid Amber

If the Device Communications LED lights solid amber, it may be a result of low light levels. If there
is not enough sunlight to power up the microinverters, they cannot communicate with the IQ Gateway. If
there is sufficient daylight for the microinverters to power up, the issue may be that the IQ Gateway is
having difficulty communicating over the power lines. To troubleshoot this issue:
•
Check the Installer App mobile app to see which devices are not communicating.
•
Check that the circuit breaker(s) for the PV array are in the "ON" position.
•
Verify that the PV modules are connected to the microinverters.
•
Verify the PV module DC voltage is within the allowable range for the microinverter.

Issue: Installer App Detects Fewer Devices than Expected

The Microinverters detected count shown in Installer App is an indication of the number of online
microinverters producing power, reporting in to the IQ Gateway, and not having any error conditions.
If this number is lower than expected, it may indicate that the IQ Gateway is not done
scanning/discovering the entire array. Alternatively, it may indicate that the IQ Gateway is having
difficulty communicating over the power lines. It could also be a result of low light levels or that the
PV module voltage is too low for the microinverter to power up. To troubleshoot the issue:
•
Check Enphase Installer App or use the Installer App to connect to the IQ Gateway to
see if any devices are not reporting in to the IQ Gateway or having any error conditions.
•
Check the circuit that the IQ Gateway is using. Appliances sharing a circuit with the IQ
Gateway may interfere with power line communication.
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IQ Gateway Metered Installation and Operation
© 2022 Enphase Energy Inc. 15 Nov, 2022