[Bug] Cannot connect to Mikrotik API: unexpected keyword 'login_methods'

[rafabravo]

Describe the issue

When trying to configure or connect to a Mikrotik router, the integration fails to authenticate. The issue stems from recent changes in the underlying librouteros library, which introduced two breaking changes in how the login method is passed during the connect() call:

The parameter 'login_methods' was renamed to 'login_method'.

It no longer accepts a string ("plain" or "token") and now requires the actual callable function.

ERROR (MainThread) [custom_components.mikrotik_router.mikrotikapi] Mikrotik 192.168.x.x error while connecting: connect() got an unexpected keyword argument 'login_methods'. Did you mean 'login_method'?

How to reproduce the issue

Go to Settings -> Devices & Services in Home Assistant.

Attempt to add or configure the Mikrotik Router integration.

Enter valid IP, username, password, and port.

Click Submit.

See the connection failure in the UI and the fatal errors in the Home Assistant logs.

Expected behavior

Screenshots

Software versions

• Home Assistant version: 2026.4.4
• Mikrotik Router version: 2.2
• Router OS version: 7.22
• Mikrotik hAP AX^3

Diagnostics data

Traceback/Error logs

First error (due to parameter name change):
ERROR (MainThread) [custom_components.mikrotik_router.mikrotikapi] Mikrotik 192.168.x.x error while connecting: connect() got an unexpected keyword argument 'login_methods'. Did you mean 'login_method'?

Second error (if parameter is renamed manually, due to string vs callable change):
ERROR (MainThread) [custom_components.mikrotik_router.mikrotikapi] Mikrotik 192.168.x.x error while connecting: 'str' object is not callable

Additional context

I have successfully patched this locally by doing the following in custom_components/mikrotik_router/mikrotikapi.py:

Importing the functions at the top:
from librouteros.login import plain, token

Updating the kwargs dictionary inside the connect() method from this:
"login_methods": self._login_method,

To this:
"login_method": plain if self._login_method == "plain" else token,

[tabooki]

I also have this exact issue

[intonet]

it's the same for me

[DaaaDave]

got the same issue

[wrzist]

my HA experience exactly the same issue

[acid-drinker-894]

dirty workaround:

edit mikrotikapi.py

kwargs = {
            "encoding": self._encoding,
##            "login_method": self._login_method, ### comment this line out
            "port": self._port,
        }

I was able to get it working... but it seems I dot't get all of the data from my miktotik :(

[caseynisu]

The error is caused by a mismatch between this custom component and the underlying librouteros library:

1. Keyword Mismatch: This component passes login_methods (plural), while librouteros at line 75 expects login_method (singular).
2. Type Mismatch: librouteros expects a callable (e.g., the plain or token function from its login.py), but a string is currently being passed by this component.

Proposed Solution

Since librouteros defaults to the plain login method automatically and this component currently only supports plain authentication, there is no need to explicitly define it. Removing the param allows the library to use its stable default.

Changes Required

In custom_components/mikrotik_router/mikrotikapi.py, comment/remove the login_methods entry from the kwargs dictionary at line 120.

Fix:

        kwargs = {
            "encoding": self._encoding,
          #  "login_methods": self._login_method,  --> Comment this at line no 120
            "port": self._port,
        }

[intonet]

I can confirm, comment the line and restart HA fix issue.

[jr551]

#476

[tabooki]

Worked for me. Thanks

…

On Wed, Apr 29, 2026, 2:14 AM Nisu Khadka ***@***.***> wrote: *caseynisu* left a comment (tomaae/homeassistant-mikrotik_router#488) <#488 (comment)> The error is caused by a mismatch between this custom component and the underlying librouteros library: 1. *Keyword Mismatch:* This component passes login_methods (plural), while librouteros at line 75 <https://github.com/luqasz/librouteros/blob/main/src/librouteros/__init__.py> expects login_method (singular). 2. *Type Mismatch:* librouteros expects a *callable* (e.g., the plain or token function from its login.py <https://github.com/luqasz/librouteros/blob/main/src/librouteros/login.py>), but a *string* is currently being passed by this component. Proposed Solution Since librouteros defaults to the plain login method automatically and this component currently only supports plain authentication, there is no need to explicitly define it. Removing the param allows the library to use its stable default. Changes Required In custom_components/mikrotik_router/mikrotikapi.py, comment/remove the login_methods entry from the kwargs dictionary at line 120. *Fix:* kwargs = { "encoding": self._encoding, # "login_methods": self._login_method, --> Comment this at line no 120 "port": self._port, } — Reply to this email directly, view it on GitHub <#488 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AHKN6NVUANYCVOGJLVUX3BD4YGMUZAVCNFSM6AAAAACYGOUFPWVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHM2DGNBRGM2TGMBUGE> . You are receiving this because you commented.Message ID: ***@***.***>

[hansmarc]

Worked for me also.

Thanks a lot.

[agarek]

When will be new and working version available???