Problem when syncing with Nextcloud Desktop

To add an account to Nextcloud desktop Application, the password must be changed. After changing the password, when the browser is opened, it gives an error again: “We have detected multiple invalid logins attempts from your IP. Therefore, your next login is throttled up to 30 seconds”. But I inserted correct and new password. After several attempts to change the password, clear the browser cache and try with another browser, I managed to change the password and login in the Nextcloud Desktop. This has been repeated for several different systems and users. Is there any solution to this issue?

What password needs to be changed in detail? For the Nextcloud desktop app it is recommended to create an app specific password instead of using the one you’re using to login to the web GUI.

there is no need create such app password yourself, desktop client itself creates app specific password as part of follow the login flow (where the user logs in using a browser and press “grant access” button)