We review VRM connection logs, check Cerbo GX network configuration, diagnose WiFi signal or Ethernet faults, and restore remote monitoring — so you can see your system from anywhere again.
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Ron was extremely helpful and tried his best to repair/reset our GivEnergy inverter remotely. In the event he was unsuccessful but he couldn’t have been more helpful. If you have problems with a GivEnergy system please contact him. Highly recommended
Very very helpfuland so quick. Made sure that a non expert like myself understood what the problem was and how to resolve it.
Amazing support, went out of his way to help try and get us back up and running
Excellent service from Solar Tech Support. Extremely quick to respond, easy to deal with and clearly very talented engineers. They were persistent throughout a complex GivEnergy battery issue and resolved everything completely. Highly knowledgeable, professional and reassuring support from start to finish. Highly recommended.
Ron is incredibly knowledgeable about solar installs in general but knows givenergy products inside out and the key personnel that worked there from the start to the end. My problem was spurious in its nature but Ron spotted it straight away when he understood the installation details. In essence the installers didn’t fit the correct trip switch. He also gave me hope that in the future hardware repairs could be possible but it’s still early days. This guy really is in the know and keen to sucas a business If you need help don’t hesitate
Prompt and useful support regarding my Sunsynk system lack of performance. Ronald simplified the technical issues to make them understandable. Many thanks, looking forward to follow up.
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.
What is VRM? VRM (Victron Remote Management) is Victron's cloud monitoring portal at vrm.victronenergy.com. It connects to your system via a GX device — typically a Cerbo GX, Venus GX, or Cerbo-S GX — which sends data over your local internet connection. VRM shows real-time battery state of charge, solar yield, grid consumption, inverter status, and alarm history. When the GX device loses connectivity, VRM shows the system as offline and you lose all remote monitoring and control.
VRM offline means the Cerbo GX cannot reach Victron's cloud servers. Your system still operates locally — solar, battery, and inverter continue working — but you lose remote visibility and control. Work through these steps to restore the connection.
Access the Cerbo GX directly — either via the touchscreen display (if fitted) or by connecting to it with VictronConnect over Bluetooth. Navigate to Settings → Ethernet/WiFi:
The Cerbo GX uses Ethernet by default when both WiFi and Ethernet are connected. Disconnecting the Ethernet cable forces it to WiFi.
The Cerbo GX has a small internal antenna — WiFi signal quality is the single most common cause of VRM dropout:
If Ethernet is not feasible, a dedicated WiFi access point or mesh node within 5 metres of the Cerbo GX is the next best option.
If you're using Ethernet but the Cerbo GX still shows no connection or 0.0.0.0, check these common failure points:
After any change, give the Cerbo GX 60 seconds to establish a new connection. Venus OS network changes are not instant.
If the Cerbo GX has a valid IP address but VRM still shows offline, the issue is between the device and Victron's cloud:
VRM access tokens do not expire on their own under normal operation. Token errors usually indicate the device was removed from VRM, re-flashed, or transferred between accounts.
Older Venus OS versions have known connectivity bugs. An update is often the final fix for persistent VRM dropout:
A quick firewall test: temporarily connect the Cerbo GX via a mobile phone hotspot. If VRM connects immediately, the issue is with your main router or firewall. See our VictronConnect & VRM setup guide for initial configuration walkthrough.
Many Victron owners treat VRM as a nice-to-have monitoring dashboard. In practice, VRM is far more important than that. On systems running ESS (Energy Storage System) mode, VRM carries dynamic grid setpoints from Victron's servers — if your electricity tariff uses time-of-use pricing (like Octopus Agile or Intelligent Go), the system needs VRM connectivity to receive updated charge and discharge schedules. Without VRM, the system falls back to its local default settings, which may not match your tariff windows.
VRM also provides remote firmware updates, alarm notifications (email and push), and two-way remote control — you can change ESS settings, adjust charge parameters, and restart devices from anywhere. For off-grid systems in remote locations, VRM is often the only way to know the system is working correctly. Losing VRM doesn't stop the hardware from operating, but it removes your ability to detect early warning signs — a slowly failing battery cell, a degrading MPPT controller, or a creeping firmware bug — before they become full system faults.
Tell us your Cerbo GX connection type and what the IP address shows. We'll diagnose the connectivity issue — WiFi dropout, DHCP failure, VRM registration, or Venus OS.
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