[Bug] Authentication Failed after uppgrading to 2025.12.1

[Svanto1963]

Home Assistant Version

2025.12.11

Bambu Lab Integration Version

v2.2.16

Describe the bug

Attempting to connect to Bambu Lab failed for 'Bambu-Lab-P1S and Attempting to connect to Bambu Lab failed for 'Bambu-Lab-P2S.

To Reproduce

after a update to 2025.12.1

Expected Behaviour

??

What device are you using?

P2S

Diagnostic Output

No response

Log Extracts

No response

Other Information

No response

[platini76]

same here

[endlessben]

Also experiencing this. The integration seems to be working just fine, however.

[mgguinne]

I tried logging in again using Bambu cloud option in the integration. Restarted Hass. Same issue.
Yes it appears the integration still works. Just end with a heap of auth alerts in repairs section.
I am on same Hass 2025.12.1 with a x1c.

[AdrianGarside]

https://github.com/greghesp/ha-bambulab/tree/v2.2.17-beta6

[AdrianGarside]

I assume everyone is hitting the same cloudflare bad brotli encoding problem I was able to see locally. If not, the new drop has new logging about the exception being thrown by the http get as it was being silently swallowed before.

[mremedi2023]

same here

[AdrianGarside]

same here

With the fixed version?

[tebrown]

I installed beta9, and the issue seems to be resolved.