Adapter does not work with AdGuardHome v0.107.65

[DEV2DEV-DE]

The adapter fails with HTTP 401 after updating AdGuardHome to version v0.107.65

adguard.0 | 2025-08-21 12:45:36.689 | warn | No connection to the server could be established. (AxiosError: Request failed with status code 401)
adguard.0 | 2025-08-21 12:45:36.669 | debug | config password: *******
adguard.0 | 2025-08-21 12:45:36.669 | debug | config user: xxxx
adguard.0 | 2025-08-21 12:45:36.669 | debug | config pollInterval: 10
adguard.0 | 2025-08-21 12:45:36.669 | debug | config serverAddress: 192.168.178.2:80
adguard.0 | 2025-08-21 12:45:36.662 | info | starting. Version 1.0.1 in /opt/iobroker/node_modules/iobroker.adguard, node: v22.18.0, js-controller: 7.0.7
adguard.0 | 2025-08-21 12:45:36.610 | debug | States connected to redis: 0.0.0.0:9000
adguard.0 | 2025-08-21 12:45:36.558 | debug | States create User PubSub Client
adguard.0 | 2025-08-21 12:45:36.557 | debug | States create System PubSub Client
adguard.0 | 2025-08-21 12:45:36.551 | debug | Redis States: Use Redis connection: 0.0.0.0:9000
adguard.0 | 2025-08-21 12:45:36.532 | debug | Objects connected to redis: 0.0.0.0:9001
adguard.0 | 2025-08-21 12:45:36.525 | debug | Objects client initialize lua scripts
adguard.0 | 2025-08-21 12:45:36.507 | debug | Objects create User PubSub Client
adguard.0 | 2025-08-21 12:45:36.507 | debug | Objects create System PubSub Client
adguard.0 | 2025-08-21 12:45:36.506 | debug | Objects client ready ... initialize now
adguard.0 | 2025-08-21 12:45:36.493 | debug | Redis Objects: Use Redis connection: 0.0.0.0:9001

[mcm1957]

Problem has been verified to exist. Please avoid further 'me too' without new information, espcially any information describing what changes have been performed by adguard. I could not detect any hint at release notes related to login and athentication.

Of course a PR to fix the issue is always welcome.

[FlexerJR]

Hello Dev.

Same problem here as well.

No connection to the server could be established. (AxiosError: Request failed with status code 401)

Adapter 1.0.1
Adguard Version: v0.107.65

[DEV2DEV-DE]

Please avoid further 'me too' without new information

Instead, vote up the initial post.

[AndreasHD23]

Maybe related to this: AdguardTeam/AdGuardHome#7987

[mcm1957]

Maybe related to this: AdguardTeam/AdGuardHome#7987

Thanks for the link. Looks very much related and would explain why there is no notice at releasenotes that soemthing has been changed on purpose. Adapter definitly uses basic authorization,

[AndreasHD23]

From the above linked issue:
_"As of v0.107.65, there is a rate limit on HTTP API endpoints with basic authentication. When you load a WebUI, multiple requests are sent to the rate limiter at the same time, which can cause it to become overwhelmed.

As a workaround, this can be controlled via the auth_attempts setting in the configuration file. If you increase this value, the errors should disappear."_

Can't verify at the moment - maybe someone else wants to give it a try.

And yes - this should've been documented...

[AndreasHD23]

Setting auth_attempts to 500 (for testing) in the config did resolve the issue.
Should work as a workaround - any suggestion for a reasonably lower number is welcome.

EDIT: Default is 5. 6 seems to work - personally I am sticking with 10, just to be safe.

[mcm1957]

keepopen at the moment

a) Info should be added to README
b) eventually output info at log if error occures
c) eventually try to delay request

[mcm1957]

The problem was caused by adguard and has been fixed there.

see AdguardTeam/AdGuardHome#7987 (comment)