Solar Assistant sensors "Unknown" after move of HA setup

Configuration
1

Hi,
I recently moved my HA from one proxmox server to another. It was all working fine on the original but since moving it everything apart from my growatt sph sensors is working.
I’m using the HA mqtt broker addon.
I have checked the solar_assistant.conf file is in the right folder and is the same as the original. and everything looks to be setup the same.
But when I go to the broker log, every few seconds I see

2025-05-20 14:59:31: Connecting bridge SolarAssistant (10.101.202.136:1883)

2025-05-20 14:59:34: Client local.core-mosquitto.SolarAssistant disconnected: No route to host.

I can mosquitto_sub to the solar assistant from a seperate mosquitto client and see all the entities being published as expected.

I have tried deleting both the broker addon and the mosquitto integration and reinstalling but the results are the same.

There is no firewall on the proxmox server.

I’m at a bit of a loss as to what to check next. It was working fine.

The only query I have is in the mqtt integration. If I go to reconfigure, the broker section shows “core-mosquitto”
with user name home assistant and password.
Is that correct? or should it have the details of the SA mqtt there?

Any pointers as to what I can check next greatly appreciated.

2

Hi, the SA mqtt details should only be in the bridge config file (solar_assistant.conf).

Can you ping SA from a proxmox console? (just to verify network connectivity)

Otherwise, maybe post all configs here, someone might spot the problem.

edit: can you also verify in mqtt log file if the SA bridge config is loaded?

1 Like
3

Thanks @rekenaar , why I never thought of that I’ll never know :smirk:.
No, destination host unreachable.
No idea why at the moment but at least I now have something to go on :+1:

I can ping other hosts on the network. NAS, windows machine ,etc. And they can ping the other way.

Seems it’s only SA that can’t be reached from proxmox. Yet it can be reached from other machines on the network.

Update2:
Just tried for a second proxmox server. Which I thought was setup the same.
It can ping SA successfully.
I’ll try installing HA on that one.

4

One question on installing HA from script.
What machine type should I go for q35 or i440fx (the default)?

5

glad you are makng progress, must be something wrong in the 1st proxmox server networking.

I am using the default i440fx, been so long, I cant remember where I got it from.

1 Like
6

found it, I just went with the default settings on the old ttek script, which is now here

7

Just installed it on the other proxmox using i440fx and it worked first time.
All sensors up and running.
Thanks for your input I’ll try it on the other one using i440fx as I thing I used q35 having read it somewhere :frowning: .

1 Like
8

Just to confirm. I tried using the defaults in the script and it works fine.
One thing I did discover though.
I set it up in my office, where I have KVM access. Moved to to the server cupboard and couldn’t connect. Discovered it doesn’t like going through a data switch (unmanaged). Patched it into a spare port direct to the router and it’s now working fine.