Error message

Hello,

As per my translator, here's the english version of your post:
I am unable to log in to the Windows RDM application. It displays the message: “Unable to connect. Please try connecting via the web client.” I have already removed the software and installed it again, and it continues to display the same message.

As per our system, you are using Hub Personal. Are you able to access your Hub Personal via this URL - https://hub.devolutions.com ?

What version of RDM are you running? Could you make sure that you are using the latest one, which is 2025.3.28.0
https://devolutions.net/remote-desktop-manager/download/

If you have access to your Hub Personal via the web + that you are running the latest version of RDM, go in File -> DataSources and make sure that you have configure a Hub Personal datasource and not a Hub Business one.

Let me know if you now have been able to connect.

Best regards,