无法将新的Windows 10计算机加入Azure AD

我们在免费套餐上有一个Azure AD，之前我们加入笔记本电脑没有任何问题。现在，当我们执行与以前相同的步骤时，我们得到以下结果：
$


出了点问题。

We have an Azure AD on free tier, and previously we didn't have any problems with joining our laptops. Now, when we perform the same steps as before, we get the following:

Something went wrong.

看起来我们无法连接到您组织的MDM使用条款的URL。 ...

Looks like we can't connect to the URL for your organization's MDM terms of use. ...

错误：invalid_client

Error: invalid_client

错误子代码：

描述：失败％20to％20authenticate％20user

Description: failed%20to%20authenticate%20user

我发现这个或类似问题的解决方案很少，似乎没有一个适用或帮助我们。解决这个问题的唯一可能的解释是我们在某些时候启用了AAD P2试用版并且最近结束了，但我们并没有太多地使用它。
虽然。

任何想法都赞赏。

I found few solutions to this or similar problems, none of them seem to be applicable or help us. The only possible explanation to having this problem is that we had AAD P2 trial enabled at some point and it ended recently, we didn't make much use of it though.
Any ideas appreciated.