python-broadlink Authentication Error With New RM4 Mini

After using direct discovery with a new RM4 Mini, can't authenticate with the "auth()" method:

Traceback (most recent call last): File "", line 1, in File "..\Lib\site-packages\broadlink\device.py", line 185, in auth e.check_error(response[0x22:0x24]) File "..\Lib\site-packages\broadlink\exceptions.py", line 152, in check_error raise exception(error_code) broadlink.exceptions.AuthenticationError: [Errno -1] Authentication failed

Mar 30 '25 01:03 bytos

I am getting the same error on a RM4 Pro after it is discovered:

[broadlink.remote.rm4pro(('192.168.1.XX', 80), mac=b'\xe8pr\x9e\xadz', devtype=21003, timeout=10, name='', model='RM4 pro', manufacturer='Broadlink', is_locked=True)]

Mar 31 '25 13:03 smithlevenson

At first, the problem was the AP not allowing the remote to connect, once fixed, couldn't get auth() to work and the app never finished the setup with the 3rd step giving an error.

Tried to setup with the app several times without apparent success, but the auth() method is working now.

I think I used the app years ago with the same model to unlock it, maybe it was unlocked while trying to setup with the app, even though it always gave that error.

Mar 31 '25 19:03 bytos

So does the device need to be unlocked in order for .Auth() to work?

At first, the problem was the AP not allowing the remote to connect, once fixed, couldn't get auth() to work and the app never finished the setup with the 3rd step giving an error.

Tried to setup with the app several times without apparent success, but the auth() method is working now.

I think I used the app years ago with the same model to unlock it, maybe it was unlocked while trying to setup with the app, even though it always gave that error.

Mar 31 '25 23:03 smithlevenson

When using setup(), I must use ip_address="192.168.0.255" according to the instructions in the Github main page.

Broadlink device unlock #449 https://github.com/mjg59/python-broadlink/issues/449

broadlink.setup fails because broadcasting the data fails #618 https://github.com/mjg59/python-broadlink/issues/618

Broadlink RM4 Pro wifi setup without using the App? https://www.reddit.com/r/homeassistant/comments/16wh0tt/broadlink_rm4_pro_wifi_setup_without_using_the_app/

Apr 01 '25 00:04 bytos