过去，我们已经告诉过您启用或禁用远程桌面连接^{(enable or disable the Remote Desktop connection)} 以及在频繁断开连接时对其进行故障排除的方法。Windows 11/10上使用此远程桌面^{(Remote Desktop)}功能时，可能会遇到登录尝试失败^{(The logon attempt failed )}错误。当您使用其他版本（如Windows 7 ）远程连接系统时，它可能会完美运行，但使用Windows 11/10/8.1时，可能会出现此错误。

为了解决这个问题，我们首先确保将Windows 防火墙^{(Windows Firewall)}设置为关闭。我们也尝试使用Remote Desktop Modern App，但情况并没有什么不同。Technet线程上提到的这个解决方案^{(This solution)}提出了一种可以解决此问题的方法。

远程连接^{(Remote Connections)}的登录尝试失败

1.按Windows Key + R组合，在“运行”^(Run) 对话框中键入Firewall.cpl ，然后^{(Firewall.cpl)}按 Enter^(Enter)打开Windows 防火墙^{(Windows Firewall)}。

2.在上图窗口中，点击允许应用程序或功能通过 Windows 防火墙^{(Allow an app or feature through Windows Firewall)}，您将看到下图窗口。首先单击更改^{(Click Change)}设置，然后在允许^(Allowed)的应用程序和功能部分中，向下滚动列表以查找远程桌面^{(Remote Desktop)}应用程序并勾选它。单击确定^{(Click OK)}。

重启机器；你的问题应该得到解决。但是，如果您的计算机是域的一部分，则默认情况下，当您连接到远程计算机时，仍然不允许您保存凭据。以下是解决此问题的方法：

3.继续，按Windows Key + R组合，在运行^(Run) 对话框中键入 put gpedit.msc并按^(gpedit.msc)Enter打开本地组策略编辑器^{(Local Group Policy Editor)}。

4.在左侧窗格中，导航至此处：

Computer Configuration -> Administrative Templates -> System -> Credentials Delegation

5.现在在此位置的右窗格中，查找策略设置允许使用仅 NTLM 服务器身份验证委派保存的凭据，^{(Allow delegating saved credentials with NTLM-only server authentication)}然后双击它。选择启用^(Enabled)并在以下窗口中点击显示：^(Show)

6.最后，在Show Contents窗口中，将Value作为TERMSRV\Computer Name，您必须在 TERMSRV\之后替换您的计算机名称。

点击确定^(OK)；申请^(Apply)；好的^(OK)。关闭组策略编辑器^{(Group Policy Editor)}。

到目前为止，我们已经解决了这个问题。您现在需要做的就是重新启动机器；你的问题应该得到解决。

希望这可以帮助。^{(Hope this helps.)}

更新^(UPDATE)：Dakota North在评论中添加 - TERMSRV/*.*是正确的语法，它允许所有服务器。

相关阅读^{(Related read)}：您的凭据在远程桌面中不起作用^{(Your credentials did not work in Remote Desktop)}。

The logon attempt failed error while connecting Remote Desktop

In the past, we’ve told you the way tо enable or disable the Remote Desktop connection and troubleshoot it when it disconnects frequently. While using this Remote Desktop feature on Windows 11/10, one might encounter a The logon attempt failed error. When you connect the system remotely using another version like Windows 7, it may work perfectly, but with Windows 11/10/8.1, one might get this error.

In order to fix this hitch, we first ensured that Windows Firewall was set to turn off. We also tried to use Remote Desktop Modern App, but it made no difference in the situation. This solution mentioned on a Technet thread suggests a method, which can fix this issue.

The logon attempt failed for Remote Connections

1. Press Windows Key + R combination, type Firewall.cpl in the Run dialog box and hit Enter to open the Windows Firewall.

2. In the above-shown window, click on Allow an app or feature through Windows Firewall, you’ll get the below-shown window. Click Change settings first then in the Allowed apps and features section, scroll down the list to look for Remote Desktop app and put a check mark against it. Click OK.

Reboot the machine; your problem should be fixed. However, if your computer is part of a domain, by default you aren’t still allowed to save your credentials when you connect to a remote computer. Here is how you can get rid of this problem:

3. Moving on, press Windows Key + R combination, type put gpedit.msc in the Run dialog box and hit Enter to open the Local Group Policy Editor.

4. In the left pane, navigate here:

Computer Configuration -> Administrative Templates -> System -> Credentials Delegation

5. Now in the right pane of this location, look for policy setting Allow delegating saved credentials with NTLM-only server authentication and double click on it. Select Enabled and hit Show in the following window:

6. Finally, in Show Contents window, put the Value as TERMSRV\Computer Name, where you have to substitute your computer name after TERMSRV\.

Click OK; Apply; OK. Close the Group Policy Editor.

So far, we’re done with fixing the issue. All you now need to do is to reboot the machine; your issue should be fixed.

Hope this helps.

UPDATE: Dakota North adds in the comments – TERMSRV/*.* is the correct syntax and it allows all servers.

Related read: Your credentials did not work in Remote Desktop.

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