Windows update KB2267602 on 11Sept24 breaks Remote Desktop Connectivity to VPNs

Question

The title says it all.

Software:

Windows 11 Pro Version 22631.4169

Microsoft Remote Desktop Version 1.2.5623.0 (x64)

RD never finds the remote client to login. No password request or Authenticator Prompt is shown. Error code is shown here:

Uninstalling Update KB2267602 resolves this issue but is not a real solution, since security updates exist for good reason. Why must you break something every time you fix something else?

*** Moved from Windows / Windows 11 / Performance and system failures ***

Answer 1

Hello,

Thank you for posting in the Microsoft community forum.

We can try the following steps to troubleshoot the problem:

1. Disable network-level authentication(NLA) on the RD client.

Open Settings and navigate to System > Remote. Under Remote Desktop, uncheck the box “Allow connections only from computers running remote desktops with network-level authentication (recommended).“

2. Try to modify the registry to disable UDP connections for Remote Desktop.

Set the fClientDisableUDP value to 1 in the registry path:

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows  NT\Terminal Services\Client.

Important:

Serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For protection, back up the registry before you modify it so that you can restore it if a problem occurs. For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows.

3. Check RDP Protocol Status. Ensure that the RDP protocol is enabled and properly configured on both the client and  server machines.

Here is a guide article for your reference:

General Remote Desktop connection troubleshooting - Windows Server | Microsoft Learn

4. Use the Event Viewer to find any error messages related to Remote Connection. Before viewing Logs, enable View > Show Analytic and Debug Logs.

As you mentioned, uninstalling the update resolves the issue. Please kindly seed feedback to Microsoft with the Feedback Hub app. In addition, the system update is timely installed after the release of new version update patches.

I hope this helps.

Best regards

Jacen

Answer 2

This makes me so mad. Your instructions might have been helpful if I were a technician. As a layperson, this might as well be written in Chinese. I provided what I assumed was sufficient information to identify a problem, based on similarly-written posts. You assumed I was technical because I guessed correctly. I am not a software or networking expert. I am a layperson. I am sure your advice is well-considered and valuable, but let me make this perfectly clear: I AM NOT HAND-PATCHING THIS.

You are making assumptions about information that you think I have, but I do not. You seem to be recommending workarounds. I do not need a workaround. I have one: uninstall the flawed update that broke my machine in the first place.

To respond to your steps:

1. I don't know what these settings are. Never heard of "disabling network-level authorization" before, and I don't know what RDP stands for, either. These kinds of assumptions are deeply irritating.
2. Modify Registry? Nope. This is what you sound like here: "Hey, would you please try to break your computer while I watch and laugh?" I don't know what these changes do, or how they will break something on the NEXT update. No.
3. I understood every word (except RDP, see above) in this phrase, but not the phrase "RDP protocol is enabled and properly configured on both the client and server machines." I don't know what it means, or how to do any of it. Even if I make assumptions about the meaning, it still sounds like nonsense.
4. What is "Event Viewer?" How do I "use" it? Are these logs in the Remote Connection, or the Event Viewer? Have you ever read a Microsoft error message? They are unintelligible nonsense. Might as well say, "The dinglehopper needs a wang-jangling before you restart the cockatoo."

NOTE: I'm not obtuse. I get that this was a genuine attempt to help, but it's infuriating that this site either assumes you're an angry toddler or a Computer Science major. I just want a working update that doesn't break functional tools.

Answer 3

This makes me so mad. Your instructions might have been helpful if I were technical. To me, as a layperson, that might as well have been written in Chinese. I provided what I assumed was sufficient information to identify a problem based on what I read in other similar community posts. I am not a software expert. I am sure this seemed like well-intended advice to you, but let me make this perfectly clear:

I AM NOT HAND-PATCHING THIS. Especially because you are making assumptions about information that you think I have, but I do not. This is a workaround. I do not need a workaround, I already have one: uninstall the flawed update that broke my machine in the first place.

Microsoft: Notify me when a new...working...update is available. Nothing less will suffice.

If Microsoft's intent was to throw some poor moderator under the bus, mission accomplished.

Now, to review these steps you've provided...

1. I don't know where the settings are for "disabling network-level authentication." I don't know what the acronym RDP means or to which server this refers. These kinds of assumptions of user knowledge are infuriating. You are the expert, not me.
2. Modify registry. NO. This is what you sound like here: "Hey, would you mind attempting to break your computer for me while I watch and laugh?" What will doing this break when I install the next update? Why would this fix something that already worked before the update? I'm not making a registry change without knowing EXACTLY WHY AND WHAT I AM CHANGING.
3. I understand each and every word independently (aside from RDP...see above), but I haven't got the slightest idea what "RDP protocol is enabled and properly configured on both the client and server machines" is supposed to mean, or how to do any of it. I have to assume it was previously "properly configured" or else my VPN wouldn't have worked, now, would it? Even if I pretend I understand what you're talking about, it still makes no sense.
4. Where is the "Event Viewer" and how do I "use" it? Are these "Logs" in the Remote Connection, or in the Event Viewer? When was the last time you read a Microsoft Error message and said to yourself, "Of, course. The dinglehopper just needs wangjangling." Those error messages make even less sense than whatever the devil I just wrote.

NOTE: I'm not being deliberately obtuse. I just fail to see how writing this far above your average user's technical level is supposed to be construed as "helpful." Let me be crystal clear on this point: I want a working update, not a workaround.

Answer 4

Hello,

We apologize for not being able to help you solve the problem. Based on my research, there are currently no known issues reported in Windows 11 update KB2267602 related to Remote Desktop Connection. We recommend that you wait for the new version update patch to be released and install it promptly.

Best regards,

Jacen