Smart Home Community > Kasa Smart Plugs > KP303 Firmware 1.1.2 will not connect to home assistant
< Kasa Smart Plugs

KP303 Firmware 1.1.2 will not connect to home assistant

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

KP303 Firmware 1.1.2 will not connect to home assistant

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
KP303 Firmware 1.1.2 will not connect to home assistant
KP303 Firmware 1.1.2 will not connect to home assistant
2025-09-12 07:34:29 - last edited 2025-09-12 13:05:53
Model: KP303  
Hardware Version: V2
Firmware Version: 1.1.2

WIth the install of 1.1.2 on my KP303, previously connected to home assistant was no longer accessible from home assistant.

Reset it and re-added with both the Kasa and Tapo apps. Works fine from the apps, but if I attempt to add it back to home assistant it fails when trying to authenticate.  I have dozens of other kasa & tapo devices connected successfully to home assistant, both before and after the KP303 issue. I even have a second KP303 connected, it is still on 1.0.9.  This is the first time I have encountered a kasa device that will not connect.  Any advice?

  0      
 
  0      
 
#1
Options
4 Reply
Re:KP303 Firmware 1.1.2 will not connect to home assistant
2025-09-14 04:38:04 - last edited 2025-09-15 02:40:26

@MrFlexo I'm having a similar issue with the KP303 firmware 1.1.2 and Home Assistant. It looks like the issue is that python-kasa doesn't support version 1.1.2 :-( 
https://python-kasa.readthedocs.io/en/stable/SUPPORTED.html

  • KP303

    • Hardware: 1.0 (UK) / Firmware: 1.0.3

    • Hardware: 2.0 (US) / Firmware: 1.0.3

    • Hardware: 2.0 (US) / Firmware: 1.0.9

 

I've opened an issue on the python-kasa GitHub page: https://github.com/python-kasa/python-kasa/issues/1574 Feel free to add any thoughts or details there.

  0  
  0  
#2
Options
Re:KP303 Firmware 1.1.2 will not connect to home assistant
2025-09-18 22:06:36

  @MrFlexo I have same issue, any way to downgrade the firmware?

  0  
  0  
#3
Options
Re:KP303 Firmware 1.1.2 will not connect to home assistant
2025-09-18 23:34:02

  @MrFlexo I' ve able to control my devices again, I enable third-party access in Kasa App and the devices starts working again.

  0  
  0  
#4
Options
Re:KP303 Firmware 1.1.2 will not connect to home assistant
2025-10-08 14:22:10

  @MrFlexo the enabling 3rd party only appears to work right after the firmware upgrade. However, the GitHub thread reports a fix has been made and is making its way through the toolchain... https://github.com/python-kasa/python-kasa/issues/1574
 

Also: https://github.com/home-assistant/core/issues/153390

 

 

  1  
  1  
#5
Options

Information

Helpful: 0

Views: 1552

Replies: 4

About Us
Press
Copyright © TP-Link Systems Inc. All rights reserved.