Suddenly not able to connect

[Puntoboy]

I noticed this morning that all of a sudden HA can't communicate with my Solax Inverter (X1-Boost-3.6). It's been working find for the last week without a problem.

Today it suddenly stopped and all identities are unavailable. I tried rebooting everything, reloading the integration and deleting/reinstalling it. No change. I've not even upgraded HA to the latest version.

This is the error in the logs.

`Logger: homeassistant.components.solax.config_flow
Source: components/solax/config_flow.py:36
Integration: SolaX Power (documentation, issues)
First occurred: 11:05:01 (1 occurrences)
Last logged: 11:05:01

Unexpected exception
Traceback (most recent call last):
File "/usr/local/lib/python3.10/site-packages/solax/inverter.py", line 37, in get_data
data = await self.make_request(
File "/usr/local/lib/python3.10/site-packages/solax/inverter.py", line 183, in make_request
response = cls.schema()(json_response)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 272, in call
return self._compiled([], data)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 595, in validate_dict
return base_validate(path, iteritems(data), out)
File "/usr/local/lib/python3.10/site-packages/voluptuous/schema_builder.py", line 433, in validate_mapping
raise er.MultipleInvalid(errors)
voluptuous.error.MultipleInvalid: required key not provided @ data['SN']

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "/usr/src/homeassistant/homeassistant/components/solax/config_flow.py", line 52, in async_step_user
serial_number = await validate_api(user_input)
File "/usr/src/homeassistant/homeassistant/components/solax/config_flow.py", line 36, in validate_api
response = await api.get_data()
File "/usr/local/lib/python3.10/site-packages/solax/init.py", line 51, in get_data
return await rt_request(self.inverter,
File "/usr/local/lib/python3.10/site-packages/solax/init.py", line 26, in rt_request
return await inv.get_data()
File "/usr/local/lib/python3.10/site-packages/solax/inverter.py", line 48, in get_data
raise InverterError(msg, str(self.class.name)) from ex
solax.inverter.InverterError: ('Received malformed JSON from inverter', 'XHybrid')`

[squishykid]

Can you please follow these instructions: https://github.com/squishykid/solax/wiki/DiscoveryError

If this still doesn't work, please follow these and share the response payload in this issue: https://github.com/squishykid/solax/wiki/Adding-Support-for-Your-Inverter

I wonder if your inverter is replying with a different payload, perhaps as a result of a firmware update?

[Puntoboy]

Thanks. No firmware updates I'm aware of.

I've tried the curl commands but not luck.

I can get to the webpage for the inverter though, and login.

[squishykid]

#32 This might have some answers for you, but unfortunately I don’t know what password to try. But if it’s admin, the equivalent curl command would be:

curl -X POST http://$hostname/?optType=ReadRealTimeData&pwd=admin&

Note: The ampersand (&) at the end is important.

[Puntoboy]

Unfortunately, that doesn't work. To login to the webpage, I have to use a username as well.

[squishykid]

Could you please try it with quotes:
curl -X POST 'http://$hostname/?optType=ReadRealTimeData&pwd=admin&'

[Puntoboy]

[squishykid]

That’s annoying. I guess you might have to do some digging to find the right URL. When you find it I can make sure it’s programmed into the library.

[Puntoboy]

I'm just not sure what's changed. It was working perfectly, then it stopped.

[squishykid]

Perhaps the firmware has been updated remotely? But I think you have tried all the requests the library makes, via curl. You could try reading though some of the other issues?

Ill come back here if I can think of anything, please reply if you solve it too

[Puntoboy]

It's the way it replies unauthorised, rather than an invalid URL or something similar.

I'm not aware of Solax applying remote firmware updates, especially without an owner knowing.

[Puntoboy]

The firmware version for the dongle is Solax_SI_CH_2nd_20160912_DE02

[Puntoboy]

So not sure what's changed, but I managed to get a response using this command.

However, Home Assistant still doesn't connect.

[Puntoboy]

If it makes any difference, I'm using the original Pocket Wifi dongle 1.0 which allowed you to access the API directly when it connects to your network, I don't need to use a reverse proxy to connect.

[andmagri]

Hi, if anyone needs this I managed to curl directly to the wifi dongle after a forced firmware upgrade using the following:

realtime=curl -s -X POST --header 'X-Forwarded-For:5.8.8.8' 'http://192.168.0.57/?optType=ReadRealTimeData&pwd=admin&' && echo $realtime

Adding the single quotes to the whole url is what fixed it apart from the pwd argument.