Roborock S7 can't be added to Home Assistant

[fettlaus]

I have tried adding my S7 today, and I am getting this error, I can add my S4 without any issues

ERROR (MainThread) [homeassistant.components.xiaomi_miio.device] DeviceException during setup of xiaomi device with host

I am running core-2021.5.1

Originally posted by @Claustn in #990 (comment)

[fettlaus]

@Claustn Do you have any additional logs from this?

[Claustn]

I tried enabling debug logging in home assistant, but it did not give me a lot more detail.

2021-05-10 23:16:40 DEBUG (MainThread) [homeassistant.components.xiaomi_miio.device] Initializing with host x.y.z.æ (token xxxxxxx...)
2021-05-10 23:16:45 DEBUG (SyncWorker_0) [miio.miioprotocol] Unable to discover a device at address x.y.z.æ
2021-05-10 23:16:45 ERROR (MainThread) [homeassistant.components.xiaomi_miio.device] DeviceException during setup of xiaomi device with host x.y.z.æ

I have confirmed that I have the right IP for the device both on my router, Xiaomi app and the python token extractor, it is running firmware 4.1.2_0978

I am relatively new to HomeAssistant, so I am not sure if there is a way to get even more detailed logs for this, but if you have any suggestions let me know and I will try to get more logs

[rytilahti]

"Unable to discover a device at address x.y.z.æ" error happens when the device is not responding to the handshake datagram. Could you check that you are able to command the device from console (by installing python-miio and executing miiocli vacuum --ip <addr> --token <token> status, for example)?

[Claustn]

Thank you for your suggestion, here is the debug output

❯ miiocli -d vacuum --ip x.y.z.æ --token xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx status INFO:miio.cli:Debug mode active Running command status DEBUG:miio.miioprotocol:Unable to discover a device at address x.y.z.æ DEBUG:miio.click_common:Exception: Unable to discover the device x.y.z.æ Traceback (most recent call last): File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/click_common.py", line 59, in __call__ return self.main(*args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 782, in main rv = self.invoke(ctx) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 1259, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 1259, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 1066, in invoke return ctx.invoke(self.callback, **ctx.params) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/click_common.py", line 280, in wrap kwargs["result"] = func(*args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/decorators.py", line 73, in new_func return ctx.invoke(f, obj, *args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/click/core.py", line 610, in invoke return callback(*args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/click_common.py", line 245, in command_callback return miio_command.call(miio_device, *args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/click_common.py", line 193, in call return method(*args, **kwargs) File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/vacuum.py", line 264, in status return VacuumStatus(self.send("get_status")[0]) File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/device.py", line 178, in send return self._protocol.send( File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/miioprotocol.py", line 161, in send self.send_handshake() File "/home/clausn/miiocli/lib/python3.8/site-packages/miio/miioprotocol.py", line 74, in send_handshake raise DeviceException("Unable to discover the device %s" % self.ip) miio.exceptions.DeviceException: Unable to discover the device x.y.z.æ Error: Unable to discover the device x.y.z.æ

[Claustn]

For some reason I missed the first part of your troubleshooting guide, saying that there can be issues when using multiple subnets.. I will do some tests, to see if I can get it connected by changing the network layout...

[rytilahti]

The discovery error happens indeed when the device is not answering to the initial handshake, so you could launch tcpdump or wireshark to verify that you are indeed not receiving a response from the device.

If that is the case with your device, feel free to open a PR to update the documentation accordingly :-)

[Claustn]

I can confirm via WireShark that I never get a response when I query the S7 from a different subnet than the vacuum itself.

Thank you very much for your help in troubleshooting this

[fettlaus]

I assume this issue is kind of solved then.
See #1045