VRM Error: 150 Unexpected Response Text

Q&A and troubleshooting New UI
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There are topics with same issue… like this one: HTTPS connection error #150 "Unexpected response text" since this morning — MQTT works fine

My take:

Hi,

I can confirm this is not an isolated case.

I’m currently managing 100+ installations, and lately I’ve been seeing this error (#150 “Unexpected response text”) quite frequently across multiple systems.

Observations from my side:

  • The issue usually resolves itself, but:

    • most of the time within hours

    • in some cases it takes multiple days

  • During this time:

    • MQTT (real-time & remote console) works fine

    • but VRM logging is broken

  • As a result:

    • logs start piling up on the Cerbo GX

    • graphs and historical data lag behind

What I’ve tested:

  • Toggling HTTPS / SSL → no effect

  • Reboots → no reliable improvement

  • Different networks → same behavior

This has been happening on multiple installations recently, which strongly suggests a server-side issue on the VRM endpoint, not something local to individual setups.

It would be great to have:

  • some status/acknowledgement from Victron that this happens and what is the root cause and if fix is planned at some point

Right now the system just sits in error state until it recovers on its own.

Thanks.