SigenCloud Offline — Why Your Sigenergy Monitoring Stopped and How to Fix It
SigenCloud showing no data? The SigenStor gateway has lost its WiFi connection — usually after a router change, broadband switch, or WiFi password update. Your system is still generating and your battery is still working. Only the monitoring link is broken. This guide walks you through the fix.
Gateway LED off, Sigenhome app can't find the system, or SigenCloud shows no data after reconfiguration? We diagnose the issue remotely and walk you through the fix.
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⚡ Safety Warning
Do not open your inverter or interfere with DC cabling. Solar panels produce live DC voltage whenever exposed to light. Always use your DC isolator switch and contact a qualified solar engineer for hands-on fault diagnosis.
Important: SigenCloud going offline does not affect your solar generation or battery operation. The SigenStor continues working normally without cloud connectivity. What you lose is visibility — you cannot monitor performance, check battery state of charge, or receive fault alerts until the connection is restored.
5-step SigenCloud reconnection guide
Most SigenCloud offline issues are caused by a WiFi connection loss at the gateway. Work through these steps — the majority are resolved by step 2 (power cycle) or step 4 (WiFi reconfiguration).
Check the SigenStor gateway LED indicators
Find the SigenStor gateway — it is either built into the inverter or a separate module connected to it. Check the LED indicators:
If the network LED is solid green but SigenCloud shows no data, check your SigenCloud account — the issue may be with account registration rather than connectivity.
Power cycle the SigenStor system
A full power cycle clears transient communication faults between the gateway, inverter, and SigenCloud:
Check SigenCloud after 10 minutes. If data is now updating with a current timestamp, the issue was a transient fault and no further action is needed.
Confirm your router broadcasts 2.4GHz WiFi
The SigenStor gateway only supports 2.4GHz WiFi. This is the single most common reason reconnection fails after a router change:
Reconfigure WiFi using the Sigenhome app
If the gateway still shows no network connection after power cycling, the stored WiFi credentials need updating:
If the gateway broadcast network does not appear in your phone's WiFi list, try power cycling the system again. Some gateways only broadcast their configuration network for a limited time after startup.
Verify the connection in SigenCloud
After the gateway reconnects, wait 10 minutes for it to begin uploading data. Then check:
Why Sigenergy monitoring goes offline — and why it matters
Sigenergy SigenStor systems use a built-in or plug-in gateway to send performance data to SigenCloud. The gateway stores your WiFi credentials and maintains a persistent connection to your router. When you change broadband providers, get a new router, or update your WiFi password, the stored credentials no longer match and the gateway drops offline. This is the single most common cause of SigenCloud monitoring going dark — and it happens to every brand that uses WiFi connectivity for monitoring.
While the gateway is offline, the SigenStor inverter and battery modules continue operating normally. Solar generation continues, the battery charges and discharges according to its programmed schedule, and EPS backup remains functional. What you lose is visibility: you cannot check battery state of charge, verify solar output, track self-consumption, or receive fault alerts. For homeowners on the Smart Export Guarantee, monitoring data also supports export payment verification.
Sigenergy is a relatively new brand in the UK market, and their monitoring platform is still maturing. If the standard reconfiguration steps do not resolve the issue, the gateway hardware itself may have failed — STS can confirm this remotely by reviewing the SigenCloud account status and LED behaviour you describe.
SigenCloud offline — common questions
SigenCloud relies on the SigenStor gateway maintaining a WiFi connection to your router. When you change broadband, replace your router, or update the WiFi password, the stored credentials no longer match and the gateway drops offline. The inverter and battery continue operating normally — only the monitoring link is broken.
The gateway has LEDs for power, network, and cloud status. Solid network LED means connected to WiFi. Flashing means trying to connect but failing — needs reconfiguration. If the power LED is off, the gateway is not receiving power from the inverter. If the network LED is solid but SigenCloud shows no data, check your account registration.
Use the Sigenhome app. Navigate to WiFi Configuration, connect your phone to the gateway broadcast network, and enter your new 2.4GHz WiFi credentials. The gateway only supports 2.4GHz — 5GHz will not work. After entering the new details, the gateway restarts and reconnects within one to two minutes.
Yes. We review your SigenCloud account status and guide you through reconfiguration in a remote session. Someone needs to be physically near the inverter during WiFi setup. If the gateway hardware has failed, we confirm remotely and advise on replacement. Book a remote diagnostic to get started.
Repeated disconnections usually indicate weak WiFi signal at the inverter location, an unstable 2.4GHz network, or band steering on a mesh router forcing the gateway onto 5GHz. Test by checking if your phone holds a stable WiFi connection from the same room. A WiFi extender or access point near the inverter resolves most intermittent disconnection issues.
SigenCloud still not connecting?
We review your SigenCloud account, diagnose gateway connectivity, and walk you through reconfiguration. If the hardware has failed, we confirm remotely and advise on next steps.
Return to the Sigenergy brand hub to explore other common faults and services.
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