The short answer
If your solar app stopped updating when you replaced the router, changed internet providers, or changed the Wi-Fi password, start with the communications problem. Save the last-reporting time, identify how the solar equipment reaches the internet, and use the manufacturer's owner instructions for that exact equipment. An offline app alone cannot tell you whether the array has stopped generating electricity.
Enphase explains that a Gateway Not Reporting message means its IQ Gateway is no longer sending system data to the cloud; a changed home network is one possible cause. It also says an offline system does not necessarily mean solar production has stopped. SolarEdge separately identifies a changed Wi-Fi network or password as a reason to reconfigure inverter communication. Those manufacturer descriptions support checking the data path before buying a replacement inverter. They do not clear every offline system as healthy. Enphase troubleshooting and support, SolarEdge configuring inverter communication
This guide is for a previously working system whose monitoring changed after a network change. A burning smell, smoke, arcing, damaged wiring, water entering electrical equipment, or visible storm damage changes the priority: move away and obtain emergency or qualified electrical help. Do not open equipment or cycle disconnects to recover an app connection.
Save three different times
Write down when the router or internet service changed, when the app says the equipment last reported, and when you first noticed missing data. These may differ. A dashboard showing yesterday's numbers can look normal until you check the timestamp.
Take screenshots that include the site name, date range, last update, and full error text. Also save the most recent complete production day before the change. If the system has more than one inverter or gateway, note whether every device went offline together or only one device did.
This is useful evidence for a remote service request. For example, “Wi-Fi password changed Tuesday at noon; gateway last reported Tuesday at 12:15; all panels now show stale data” describes a different investigation from “router changed Tuesday, but one panel stopped reporting Monday.” The second timeline gives the technician a reason to investigate a separate issue.
Do not label the screenshot “zero production” unless it actually shows a current, valid production measurement of zero. Missing, stale, and zero are different observations.
Identify the connection the system actually uses
Look in the owner app, installation paperwork, or communications section of the manual for the configured connection: home Wi-Fi, Ethernet, cellular, or another manufacturer-supported arrangement. Record the gateway or inverter model. Use labels only if they are visible without opening an enclosure or entering a hazardous area.
A home-router change is a strong clue only when that router is part of the solar equipment's data path. If the system uses cellular service, ask the provider about the modem and service status instead of assuming a new Wi-Fi password is responsible. If it uses Ethernet, tell support whether the router was replaced and whether an external, accessible cable was moved. Leave connections inside electrical equipment to the service professional.
Do not buy a Wi-Fi adapter because the app says “offline.” First ask whether this model already has compatible communications hardware, which connection it was using before, and whether the proposed part addresses an identified failure. A quote should name the device and the reason for replacing it.
Check home internet without touching solar equipment
Using your own phone or computer, confirm that an ordinary webpage loads while connected to the home Wi-Fi network. Note if the phone is using cellular data instead. This checks the home network; it does not prove that the solar gateway can connect from its location.
Next, list the network changes you actually made. Useful details include a new network name, new password, moved router, added mesh system, or provider change. Tell support these facts without sending the Wi-Fi password in an ordinary email or public forum.
If other household devices also lost internet access, restore the home network with the internet provider or router support first. If other devices work and solar monitoring alone remains offline, the next question is whether the solar equipment needs its connection updated or has a separate communications fault. Avoid changing firewall protections, opening internet-facing ports, or weakening Wi-Fi security based on an unverified troubleshooting post.
Use an owner workflow that matches the equipment
For an Enphase system, start with the error and connectivity help offered in the Enphase App and the applicable IQ Gateway or Envoy documentation. Enphase's support page directs owners toward equipment-specific instructions and support if reconnection does not resolve the problem. It distinguishes Gateway Not Reporting from Microinverter Not Reporting: the latter concerns device communication with the gateway and can require a different investigation. Enphase troubleshooting and support
For a SolarEdge system supported by its owner communication workflow, consult the current mySolarEdge instructions. SolarEdge explains that an S_OK status in the relevant communication or inverter-status screen indicates successful communication with its monitoring server. Confirm the procedure applies to your inverter and communications hardware before following it. An app menu shown for another generation of equipment is not a reason to improvise. SolarEdge configuring inverter communication
Do not use a universal button sequence, breaker reset, enclosure-opening step, or shutdown order. If the matching instructions require unfamiliar physical controls, cannot be completed from a safe owner-accessible location, or do not match what you see, stop and ask the installer or manufacturer for the appropriate service route.
Electrical safety still matters during a communications complaint. DOE's PV weather-vulnerability guide warns that untrained people must not touch PV electrical components even when presumed de-energized. Keep your work to the app, ordinary home-network observations, and safely visible labels or indicators. DOE PV System Owner's Guide
Decide whether remote help is enough
Ask support to answer two separate questions: Is the equipment communicating now, and what evidence establishes that the solar system is producing as intended? A restored network status is a useful result, but it should not be described as a complete electrical inspection.
Remote help is a reasonable first request when the timing matches the router change, there is no visible damage or electrical alarm, and support can verify the device's communications status. An onsite visit becomes more useful when support identifies a hardware or power issue, the gateway is unresponsive, the reconnect workflow is unavailable for this model, or fresh data reveals a production fault.
For an onsite quote, request a diagnostic scope before authorizing a replacement. It should identify:
- The gateway or inverter model and configured communications method
- The evidence supporting a failed component rather than incorrect network configuration
- What the technician will check and which electrical or enclosure work requires professional access
- Whether reconnection, firmware work, replacement hardware, or another service is proposed
- The separate parts, labor, travel, and monitoring charges, with warranty eligibility stated in writing
A blanket “new inverter required” diagnosis without device identification or supporting findings is a reason to ask for clarification, not to approve a larger repair automatically.
Verify fresh data before closing the ticket
After support says communication has returned, check for a new reporting timestamp and data from the correct site. Ask when to expect any missing history to appear and what gaps may remain for your equipment; do not assume every system stores or backfills the same amount of data.
Review the next available complete daylight production period with support if there are still alerts or unexplained missing intervals. Keep the original screenshots, the support case number, and the final explanation. If monitoring is online but the production complaint remains, open a production service request with the current evidence rather than repeatedly changing the network settings.
For the broader records and safe owner-care routine that supports future troubleshooting, see rural solar and battery maintenance after purchase.