Unable to Add a TPLink KP200 device to Home Assistant

[sh00tfire]

The problem

I just got a new TPLink KP200 smart outlet. I have another one that has been successfully added to home assistant. This new one immediately updated to firmware 1.1.0. My previous KP200 is still on version 1.0.3. the new outlook is asking for a username and password when trying to connect. I have tried both my tplink cloud account and my kasa account to no avail. I am guessing the issue is the new firmware.

What version of Home Assistant Core has the issue?

core-2025.12.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

TPLink

Link to integration documentation on our website

https://www.home-assistant.io/integrations/tplink

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant[bot]]

Hey there @rytilahti, @bdraco, @sdb9696, mind taking a look at this issue as it has been labeled with an integration (tplink) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of tplink can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign tplink Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component) to the issue.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component) on the issue.

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[jhamilton115]

Having the same issue with trying to add Kasa HS300 power strip.

[stncttr908]

Same issue with new HS300 which unfortunately upgraded to 1.1.2 before I could stop it (other two on prior version 1.0.12 are fine)

EDIT: Some combo of turning off and back on the third-party integration and then resetting and re-pairing the HS300 via the Tapo app, and not the Kasa app, has it now working per this post https://community.home-assistant.io/t/tplink-kasa-hs300-power-strip-problems/936871/9