[tapocontrol] TapoControl L530 "Login Error"

[CrimsonBinome24]

Received "Login error" on brand new L530 devices, The bridge shows online and the "Thing" is referencing the correct bridge. This is also a brand new instance of Openhab running on Ubuntu, installed per the docs. TCPDUMP shows communication between the openhab server and the L530,

Openhab version: openHAB 3.4.2
Java: OpenJDK 11.0.18
Binding Version 3.4.2

modelId
L530
vendor
Tapo
hardwareVersion
2.0
firmwareVersion
1.0.10 Build 221129 Rel.193015

[CrimsonBinome24]

15:05:06.290 [TRACE] [apocontrol.internal.device.TapoDevice] - (tapocontrol:L530:*REDACTED*) schedulerAction
15:05:06.292 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) not logged in
15:05:06.294 [DEBUG] [apocontrol.internal.device.TapoDevice] - (tapocontrol:L530:*REDACTED*) tried to query DeviceInfo but not loggedIn
15:05:06.339 [TRACE] [trol.internal.api.TapoDeviceConnector] - (tapocontrol:L530:*REDACTED*) sending login to url 'http://*REDACTED*/app'
15:05:06.342 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) create handhsake with payload: {"method":"handshake","params":{"key":"-----BEGIN PUBLIC KEY-----*REDACTED*-----END PUBLIC KEY-----\n"},"requestTimeMils":1676991906341}
15:05:06.345 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) sendRequest to 'http://*REDACTED*/app' with cookie ''
15:05:06.368 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) received awnser: {"error_code":0,"result":{"key":"*REDACTED*"}}
15:05:06.370 [TRACE] [pocontrol.internal.helpers.TapoCipher] - Init TapoCipher with key: *REDACTED*
15:05:06.373 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) got cookie: 'TP_SESSIONID=*REDACTED*
15:05:06.376 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) sendRequest to 'http://*REDACTED*/app' with cookie 'TP_SESSIONID=*REDACTED*
15:05:06.387 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) received result: {"error_code":-1501}
15:05:06.389 [DEBUG] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) login recieved errorCode -1501 - Login Error
15:05:06.392 [TRACE] [ontrol.internal.api.TapoDeviceHttpApi] - (tapocontrol:L530:*REDACTED*) not logged in

[CrimsonBinome24]

I've been able to verify that at leas the bridge is working as the lights are auto-discovered via the bridge option to do so.

[lsiepel]

Can i assume this issue is fixed for atleast curent stable openHAB 4.2.1 ? There seem to be several related PR's after 3.4.2

[frodo87]

I am still experiencing this issue, although the error code is different.
When using protocol: AES (Secured HTTP Protocol), then the error is login failed (1111). If I change to protocol: KLAP (Secured KLAP HTTP Protocol), then the error is cant create handshake (1100).

In none of the two cases I see any package leaving the openhab to port 80, where the lamp L530 is listening. It feels as if the tapo control is not even trying to reach anything.

Error log with KLAP:

2024-09-13 23:01:00.499 [TRACE] [l.devices.wifi.TapoBaseDeviceHandler] - (tapocontrol:L530:Mr71_tapo_light_bed) schedulerAction
2024-09-13 23:01:00.500 [DEBUG] [l.devices.wifi.TapoBaseDeviceHandler] - (tapocontrol:L530:Mr71_tapo_light_bed) check if logged in but is not
2024-09-13 23:01:00.603 [TRACE] [ernal.api.protocol.klap.KlapProtocol] - (tapocontrol:L530:Mr71_tapo_light_bed / HTTP-KLAP) login to device
2024-09-13 23:01:00.603 [TRACE] [ternal.api.protocol.klap.KlapSession] - reset KlapSession
2024-09-13 23:01:00.604 [TRACE] [ternal.api.protocol.klap.KlapSession] - (tapocontrol:L530:Mr71_tapo_light_bedKLAP-Session) sending bytes'*REDACTED* to 'http://*REDACTED_ACTUAL_IP_OF_LAMP*:80/app/handshake1' 
2024-09-13 23:01:00.604 [DEBUG] [rol.internal.api.TapoDeviceConnector] - (tapocontrol:L530:Mr71_tapo_light_bed / DeviceConnector) exception while login '@text/error-api-hand-shake-failed [ "1100" ]'
2024-09-13 23:01:00.604 [DEBUG] [rol.internal.api.TapoDeviceConnector] - (tapocontrol:L530:Mr71_tapo_light_bed / DeviceConnector) handle error '@text/error-api-hand-shake-failed [ "1100" ]'
2024-09-13 23:01:00.604 [TRACE] [ternal.api.protocol.klap.KlapSession] - reset KlapSession

Error log when using AES:

==> data/openhab/userdata/logs/openhab.log <==
2024-09-13 23:03:33.077 [TRACE] [l.devices.wifi.TapoBaseDeviceHandler] - (tapocontrol:L530:Mr71_tapo_light_bed) schedulerAction
2024-09-13 23:03:33.077 [DEBUG] [l.devices.wifi.TapoBaseDeviceHandler] - (tapocontrol:L530:Mr71_tapo_light_bed) check if logged in but is not
2024-09-13 23:03:33.180 [TRACE] [l.api.protocol.aes.SecurePassthrough] - (tapocontrol:L530:Mr71_tapo_light_bed / HTTP-SecurePasstrhough) login to device
2024-09-13 23:03:33.180 [TRACE] [rotocol.aes.SecurePassthroughSession] - (tapocontrol:L530:Mr71_tapo_light_bed / SecurePassthrough-Session) create handhsake with payload: {"method":"handshake","params":{"key":"-----BEGIN PUBLIC KEY-----*REDACTED*-----END PUBLIC KEY-----\n"},"requestTimeMils":1726261413180}
2024-09-13 23:03:33.181 [TRACE] [rotocol.aes.SecurePassthroughSession] - (tapocontrol:L530:Mr71_tapo_light_bed / SecurePassthrough-Session) sending Handshake request: '{"method":"handshake","params":{"key":"-----BEGIN PUBLIC KEY-----\*REDACTED*-----END PUBLIC KEY-----\n"},"requestTimeMils":1726261413180}' to 'http://*REDACTED_ACTUAL_IP_OF_LAMP*:80/app' 
2024-09-13 23:03:33.181 [DEBUG] [rol.internal.api.TapoDeviceConnector] - (tapocontrol:L530:Mr71_tapo_light_bed / DeviceConnector) exception while login '@text/error-api-login-failed [ "1111" ]'
2024-09-13 23:03:33.182 [DEBUG] [rol.internal.api.TapoDeviceConnector] - (tapocontrol:L530:Mr71_tapo_light_bed / DeviceConnector) handle error '@text/error-api-login-failed [ "1111" ]'

==> data/openhab/userdata/logs/events.log <==
2024-09-13 23:03:33.182 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'tapocontrol:L530:Mr71_tapo_light_bed' changed from OFFLINE (COMMUNICATION_ERROR): login failed (1111) to UNKNOWN: login failed (1111)
2024-09-13 23:03:33.182 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'tapocontrol:L530:Mr71_tapo_light_bed' changed from UNKNOWN: login failed (1111) to OFFLINE (COMMUNICATION_ERROR): login failed (1111)

Details of the binding version, 4.2.1:

Source
openHAB Distribution
Provided By
openHAB
checkmark_seal_fill
Version
4.2.1
Type
binding
Connection Type
cloud
Content Type
Karaf Feature
Provisioned With
Karaf

OpenHab, v 4.2.1:

openHAB 4.2.1
Release Build

Check of outgoing packages, where openhab is the hostname of the server:

tcpdump -vvv 'src openhab and (dst port 443 or dst port 80)'

This would only show traffic when, e.g. visiting the bindings store. But it remains silent when attempting to connect to the lamp.

Model of the Lamp, as reported by Tapo app:

Model: Tapo L530
Hardware Version: 2.0
Firmware Version: 1.1.1 Build 240623 Rel.114041

[lsiepel]

@wildcs would you be able to comment on this issue?

[frodo87]

@wildcs would you be able to comment on this issue?

What would you need to know? I can still try to retrieve some more information.

[lsiepel]

@wildcs implemented the KLAP protocol and knows alot about this binding.