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Martin Silbernagl avatar image
Martin Silbernagl asked

PSA: 172.24.24.0/24 fails for Internet connectivity

I discovered the hard way (days of debugging, including serial console) that the build-in WiFi access point of the Cerbo GX uses the private IP network 172.24.24.0/24. So, even when WiFi is turned off, using a LAN (be it Ethernet or WiFi based) will obtain the correct IP address via DHCP, but fail to route any traffic.

This will manifest itself in with an #153 Connection error in the VRM online portal screen:

<urllib3.connection.VerifiedHTTPSConnection object at 0xb5a04688> Failed to establish a new connection: [Errno -3] Temporary failure in name resolution

img-3429.jpeg

Could someone from Victron please add this to the Cerbo GX documentation?

TCP IP Networking
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Matthias Lange - DE avatar image
Matthias Lange - DE answered ·

I don't have much knowledge in network stuff, but there is something mentioned in the manual:

If you cannot use VictronConnect, you can use a web browser and navigate to the IP address http://172.24.24.1 or http://venus.local

https://www.victronenergy.com/media/pg/Cerbo_GX/en/accessing-the-gx-device.html#UUID-12ee0e7e-a2db-4c34-1ab3-db19636edc37

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Martin Silbernagl avatar image Martin Silbernagl commented ·

Yes, that is an implicit hint, but I was thinking more along the lines of adding an explicit one to section [12.4 Troubleshooting data logging](https://www.victronenergy.com/media/pg/Cerbo_GX/en/vrm-portal.html#UUID-9d000e4f-dfd4-e0a1-ec69-a66278548d67) of the Cerbo GX manual. It already contains a section relating to Error #153 Connection error.


Also Section [6 Internet Connectivity](https://www.victronenergy.com/media/pg/Cerbo_GX/en/internet-connectivity.html) might be improved with this information.

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