If you've tried the steps below and the inverter still won't connect, send us your inverter model and router details. We can diagnose remotely via screen-share and get your monitoring back online.
Book WiFi diagnosticBack to SolarEdge hubMost WiFi issues resolved same-day. No site visit needed for communication faults.
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I sent a message on their website regarding a problem I have on my Givenergy system. Although not supplied by Ronald, I thought it was worth an email. Within the hour on a Saturday, he phoned and we discussed the problem. He logged in remotely and gave excellent advice. I'm too far away for his on-site help but he did diagnose the problem and was happy also to chat through my thoughts about an upcoming solar/battery install I'm planning. Great bloke.... if only he was nearer!
A really big thank you to Ron and his team, he has vast amounts of knowledge and got my system back up and running, also good to get on with. I was absolutely lost as to know what to do, no help from installer and somehow came across Ron and am I glad I did. I would definitely definitely recommend him to anyone who has faults with there solar system, any make I would say. Thanks again Ron a pleasure meeting you.
Very very helpfuland so quick. Made sure that a non expert like myself understood what the problem was and how to resolve it.
Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.
Most common cause: A new router, ISP switch, or WiFi password change breaks the stored WiFi credentials inside the inverter. The inverter keeps generating electricity — only monitoring is affected. Reconnecting takes 5–10 minutes with a phone and the SolarEdge Go app.
Work through these steps in order. You need a phone with SolarEdge Go installed and physical access to the inverter. No tools or qualifications required.
Check monitoring.solaredge.com — if the last communication timestamp is more than a few hours old, the inverter is offline. The Communication LED on the front of the inverter (middle LED) should be solid green when connected. If it is off or flashing, the WiFi connection has been lost.
No network connection at all. The inverter is not attempting to connect — the stored WiFi credentials are likely wrong or the WiFi module has no network to reach.
The inverter is trying to connect but failing. This usually means it can see the network but the password is wrong, or the router is rejecting the connection.
Look at the underside of the inverter for a network cable plugged into an RJ45 port. If there is a cable running to your router or a network switch, the inverter uses Ethernet — not WiFi. In that case, check the cable is securely plugged in at both ends, the router port has link lights, and DHCP is enabled on your router.
If there is no Ethernet cable, the inverter uses its internal WiFi module. Continue to Step 3.
Download SolarEdge Go from the App Store (iOS) or Google Play (Android). Stand within 3–4 metres of the inverter and open the app. It uses Bluetooth to connect directly — no WiFi or internet required for this step.
If Bluetooth fails to connect, power-cycle the inverter: switch off the AC isolator at the consumer unit, wait 30 seconds, then switch it back on. Try connecting within 2 minutes of the restart — the Bluetooth module is most responsive immediately after power-up.
SetApp is the installer version and offers more settings, but SolarEdge Go is sufficient for WiFi reconnection and is available to homeowners without an installer login.
In SolarEdge Go, go to the inverter's Settings then Communication then WiFi. The app will scan for available networks. Your home WiFi network should appear in the list.
SolarEdge inverters only support 2.4GHz WiFi. They cannot see or connect to 5GHz networks. Check your router settings and ensure 2.4GHz is enabled. If your router combines both bands under one SSID, the inverter should still detect the 2.4GHz band. Some mesh systems and newer routers default to 5GHz-only — you may need to enable the 2.4GHz band separately.
Tap your network name and enter the WiFi password exactly as set on your router. The password is case-sensitive. After entering it, the app sends the credentials to the inverter over Bluetooth.
The Communication LED should turn solid green within 1–2 minutes. If it does not connect, double-check the password character by character, confirm you selected the 2.4GHz network (not 5GHz), and check that your router does not have MAC address filtering enabled.
If the password contains special characters, enter them exactly. Some routers use a default password printed on the back of the unit — if you have changed the password since installation, the new password is what the inverter needs.
Once the Communication LED is solid green, wait 10–15 minutes and check monitoring.solaredge.com. The last communication timestamp should update to the current time. Live production data will start flowing again once the portal syncs.
If the portal still shows no communication after 30 minutes with a solid green LED, the issue is likely a firewall, DNS, or port-blocking setting on your router rather than the WiFi credentials. SolarEdge monitoring uses outbound HTTPS (port 443) — check that your router is not blocking this traffic.
Historical data from the offline period will not back-fill in the portal. The inverter does not store production data locally for later upload — only real-time data flows once the connection is restored.
Most SolarEdge WiFi disconnections are caused by a router change, ISP switch, or password update. The fix is straightforward — update the credentials via SolarEdge Go and the inverter reconnects within minutes. However, some situations require a different approach.
If the inverter is installed in a garage, loft, or outbuilding that is far from the router, the WiFi signal may be too weak for a reliable connection. In these cases, consider a WiFi range extender positioned between the router and the inverter, or run an Ethernet cable directly to the inverter's RJ45 port. Ethernet is always more reliable than WiFi for inverter communication and eliminates signal-strength issues permanently.
If the Communication LED turns green but the monitoring portal never updates, the issue is usually a router-level block — some routers block outbound traffic on certain ports by default, or the router's DNS settings are preventing the inverter from reaching SolarEdge's servers. Check that outbound HTTPS (port 443) is not restricted and that the router's DNS is set to a public provider such as 8.8.8.8 or 1.1.1.1.
Return to the SolarEdge brand hub for other setup guides and fault diagnosis.
SolarEdge support hubIf you've worked through the steps and the inverter still won't reconnect, send us your inverter model and router details. We diagnose remotely via screen-share — most communication faults are resolved same-day without a site visit.
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