openwrt 22.03 stable release Device [openwrt] async_update_data error: rpc error: 2

[amirudon]

could not connect to openwrt 22.03

home assistant giving error:
Device [openwrt] async_update_data error: rpc error: 2

logs from home assistant:

This error originated from a custom integration.

Logger: custom_components.openwrt.coordinator
Source: custom_components/openwrt/ubus.py:121
Integration: OpenWrt (documentation, issues)
First occurred: 9:33:48 AM (23 occurrences)
Last logged: 9:59:08 AM

Device [openwrt] async_update_data error: rpc error: 2
Traceback (most recent call last):
File "/config/custom_components/openwrt/coordinator.py", line 250, in async_update_data
result["wan"] = await self.update_wan_info()
File "/config/custom_components/openwrt/coordinator.py", line 215, in update_wan_info
response = await self._ubus.api_call(
File "/config/custom_components/openwrt/ubus.py", line 41, in api_call
return await self._api_call(rpc_method, subsystem, method, params)
File "/config/custom_components/openwrt/ubus.py", line 121, in _api_call
raise ConnectionError(f"rpc error: {result[0]}")
ConnectionError: rpc error: 2

[BosakS]

Same error:
2023-02-12 00:50:54.069 ERROR (MainThread) [custom_components.openwrt.coordinator] Device [OpenWrt] async_update_data error: rpc error: 2
Traceback (most recent call last):
File "/config/custom_components/openwrt/coordinator.py", line 252, in async_update_data
result["wan"] = await self.update_wan_info()
File "/config/custom_components/openwrt/coordinator.py", line 217, in update_wan_info
response = await self._ubus.api_call(
File "/config/custom_components/openwrt/ubus.py", line 41, in api_call
return await self._api_call(rpc_method, subsystem, method, params)
File "/config/custom_components/openwrt/ubus.py", line 121, in _api_call
raise ConnectionError(f"rpc error: {result[0]}")
ConnectionError: rpc error: 2

[JorgenEvens]

In my case this was caused by entering the interface names rather than the actual device names for WAN and WLAN devices.

You can find the device names by hovering over the icons shown for an interface.