Local API timeout despite port being open - Saros 10 (a147)

[Kranzes]

As you can see I am failing to connect to the device using the local client. I read that it could be because of a closed/blocked port, but that doesn't seem to be the case.

[kranzes@pongo ~]$ roborock --debug status --device_id <device_id>
DEBUG:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] Building message id 20001 for method RoborockCommand.GET_NETWORK_INFO
DEBUG:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] Connecting to mqtt
INFO:roborock.cloud_api:Starting mqtt loop
INFO:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] Connected to mqtt mqtt-eu.roborock.com:8883
INFO:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] Subscribed to topic rr/m/o/<???>/<???>/<device_id>
DEBUG:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] id=20001 Requesting method get_network_info with []
DEBUG:roborock.version_1_apis.roborock_mqtt_client_v1:[Saros 10] id=20001 Response from get_network_info: {'ssid': '<SSID>', 'ip': '192.168.1.16', 'mac': '<MAC>', 'bssid': '<BSSID>', 'rssi': -63}
DEBUG:roborock.version_1_apis.roborock_local_client_v1:[Saros 10] Building message id 20002 for method RoborockCommand.GET_STATUS
DEBUG:roborock.version_1_apis.roborock_local_client_v1:[Saros 10] Connecting to 192.168.1.16
INFO:roborock.version_1_apis.roborock_local_client_v1:[Saros 10] Connected to 192.168.1.16
ERROR:roborock.version_1_apis.roborock_local_client_v1:[Saros 10] id=1 Timeout after 4 seconds
DEBUG:roborock.version_1_apis.roborock_local_client_v1:[Saros 10] id=20002 Requesting method get_status with []
{
    "fanPowerOptions": []
}

[kranzes@pongo ~]$ nc -zv 192.168.1.16 58867

Connection to 192.168.1.16 58867 port [tcp/*] succeeded!

[Kranzes]

TCP handshakes (from/to) seem fine? (checked with wireguard)

[Dischi]

I started to have the same problems. Until end of July everything worked fine. I was on vacation for the last three weeks and now the local api does not work anymore. I get the same timeout messages. Looking at Wireshark the communication seems to be OK. TCP stream is set up and I can see the messages to the device and the ACK for the messages. But the device never sends an answer.

Roborock S8 (Model name in app: a51)
Firmware 02.17.42

[Lash-L]

A firmware update changed the local protocol for at least the Saros 10R - I don't know about others, no way for me to easily check.

It uses a different local protocol than other devices, I am unable to reverse engineer it without having access to one on my network.

Cloud protocol should still work

[Kranzes]

What are the downsides of the cloud protocol compared to the local one?