Huawei sun2000 inverter couldn't connect

Hi,

I tried to install the Huawei Solar integration for my Sun2000 inverter. I tried to figure out my problems with reading similar topics but couldn’t solve my problem.

I installed a second network connection on HA via wlan with different domain. In the same network my inverter is connected.
I fired a ping from HA to inverter and the connection seems to be fine.

While installing the integration I went through the steps with selecting network connection and typing the inverter IP as host. Port 502 or 6607 (tried both) and Slave ID 0, 1 and 2 (tried all in all combination).
Trying to connect gives me this message:

Same when I try to connect via LAN connection.

I also tried to connect with the direct wlan on inverter 192.168.200.1 but the connection is weak and disappears always.

I don’t know where I have to start to change some settings or even don’t know where I have to look.
Is there something to change in the settings of the inverter?

It would be great if someone would have an idea where to start.

thx Lars

Problem solved… nothing changed but after hundreds tries suddenly I could install the integration.

Works perfect.