Forum Widgets
Latest Discussions
PowerShell DSC Pullserver stops working with SQL database
After updating Windows Server 2025, our DSC Pull Server stopped communicating with its SQL backend database. The issue was not present before the update, and reverting to the previous version of Microsoft.PowerShell.DesiredStateConfiguration.Service.dll immediately restored normal functionality. With the newer DLL version, the service starts successfully and the endpoint remains available, but no connection is established to the SQL Server database. As a result, database initialization does not occur, required tables are not created or updated, and node registration fails. No database sessions are observed on the SQL Server during registration attempts, indicating that the service does not reach the SQL connection phase. We compared the previous working DLL version with the updated version and confirmed that the regression is introduced by the newer DLL. Replacing the updated DLL with the earlier version consistently restores SQL database connectivity and normal Pull Server Operation.
Unable to Build Switchless Storage using Network ATC
3-Node HV/S2D Cluster using Switchless Storage and Network ATC getting Network HUD Error I have a Dell 3-node server cluster being used to host Hyper-V with S2D. Each node is identical and certified to pass S2D requirements. The networking consists of 2 onboard 1 Gbps and 2 quad-port PCI(e) NICs at 10/25 Gbps. The 2 onboard ports are being used for the management intent, 2 ports from each of those NICs are being connected to 2 top-of-rack switches for the compute intent at a total of 12 10 Gbps connections, and the other 2 ports from each of those NICs are being connected directly to the other nodes in a dual mesh method for the storage intent at a total of 6 25 Gbps connections. Very similar to the Microsoft diagram for a three-node storage switchless, dual TOR, dual link deployment network reference pattern for Azure Local, but I am using Windows Server 2025 Datacenter, not Azure Local. The problem I am encountering is when I attempt to create the switchless storage intent, I get an error (shown below) that reads "Failed to fetch physical NIC mapping from the Network HUD service. Please diagnose..." If I leave off the switchless option, it builds without issue. The error only occurs when I attempt to use the switchless option. I tried without configuring the NIC IP addresses first, as well as trying configuring the NIC IP addresses beforehand. I tried without having a cluster built first, as well as building a failover cluster without storage before running the network intent command. The error I posted below shows my last attempt after having the NICs configured with IP addresses and having a failover cluster established before running the command. The error has remained the same throughout the process. Has anyone else run into an issue like this with switchless storage? It seems like everything that I am trying to do is within scope and should be a supported solution. My fallback plan is to use my existing switches, but that drops my connection speeds down from 25 Gbps to 10 Gbps due to hardware limitations.
ntoskrnl.exe and build version not getting updated after applying KB5078740 on server 2025
I have installed the latest March patch kb5078740 on server 2025 which was upgraded from server 2022. the patch is showing installed but the ntoskrnl.exe and build version is still showing 10.0.26100.4652. Qualys is detecting it as patch not installed based on file version which should be 10.0.21600.32522. Please let me know how to fix this issue.Virtual printer in windows server 2019 standard is not shown after configuration
Hello, I am, trying to configure a virtual printer in a Windows server 2019 standard edition that is deployed in OCI cloud. This instance has windows server license included in the pricing. The problem comes when after ending the process of configuration this virtual printer is not displayed in "Devices and printers" any idea why is this happening? Regards, Ana
Problem in Windows Server 2022
Hello, I need help with the following: I had the video application installed and working on a VPS with Windows Server 2022, and suddenly it stopped working. It won't start, and it doesn't show any errors or events that I can analyze in the viewer. Does anyone have any idea what might be happening? I've already tried many AI recommendations, from uninstalling and reinstalling an older version of the application to uninstalling the latest server update, among other things. I also tried installing it on another VPS, and it shows the same problem.
Windows Server 2022 File Server Cluster | Network Teaming
Hello Microsoft Community, I have a Windows Server 2022 File Server Cluster (all physical nodes) running with SMB shares. At present, it is not configured with NIC teaming. We are planning to setup NIC teaming. I am going to add an additional network adapter to achieve this. Since this is a production file server server. It tried to perform NIC teaming in a test environment. Upon setting up network teaming, File server clustered roles do not come online and fail. It registers an Event ID 1049 about duplicate IPs despite the fact that I have deleted old network adapter via device manager (show hidden devices). New network adapter comes online without any previous knowledge of IPs. When setting up old IP scheme on a new individual network adapter, File server clustered roles come online successfully. However, setting up the old IP scheme on teamed network adapter, it registers Event ID 1049 about duplicate IPs and roles shows a status of Failed instead of Stopped. Duplicate IPs are only registered for clustered file server roles. They are not registered for node IPs and cluster management IPs. What would be a best way to achieve network teaming on an existing file server cluster without setting up the cluster from scratch?
Enforcing LDAP Signing breaks ADDS Replication (repadmin.exe)
Hi All, After months of auditing Event ID 2889 and remediating application simple binds (clear text usernames/passwords over the wire), I was left with only SASL binds (that do not use signing). I proceeded to set LDAP signing to 'negotiate' as per the GPOs below, and several dozen Microsoft KBs and from the community e.g.. https://learn.microsoft.com/en-us/troubleshoot/windows-server/active-directory/enable-ldap-signing-in-windows-server Default Domain Controllers Policy Domain controller: LDAP server signing requirements: None: Data signing is not required in order to bind with the server. If the client requests data signing, the server supports it Default Domain Policy Network security: LDAP client signing requirements: Negotiate signing: If Transport Layer Security/Secure Sockets Layer (TLS\SSL) has not been started, the LDAP BIND request is initiated with the LDAP data signing option set in addition to the options specified by the caller. If TLS\SSL has been started, the LDAP BIND request is initiated with the options that are specified by the caller. I still noted 1,000s of Event ID 2889s (0 – SASL Bind that does not use signing), primarily from DCs, and ::1 addresses I proceeded with enforcing LDAP signing ("Require Signing" for both GPO settings above) and noted: LDAP authentication was occurring via Kerberos (SASL/SPNEGO) with simple binds blocked as per tracing (and ldp.exe) confirmations: Error <8>: ldap_simple_bind_s() failed: Strong Authentication Required Error 0x2028 A more secure authentication method is required for this server. However, I came to work the next day and performed a manual replication: Repadmin /Syncall /APeD LDAP error 8 (Strong Authentication Required) Win32 Err 5. So I had to revert back to Negotiate. How can customers enforce LDAP signing if common Microsoft ADDS executables like repadmin.exe still use Simple Binds? Any ideas appreciated, thank you in advance. Steve
Windows Server 2025 DC — LSASS handle leak identified via WinDbg — authz!AuthzpDeQueueThreadWorker
Hello All!! Im having a problem, LSASS crashes on a Windows Server 2025 Domain Controller, I identified what appears to be the root cause using WinDbg memory dump analysis. Sharing this hoping someone else has seen it or Microsoft can confirm. The Problem LSASS handle count grows continuously over time and eventually crashes with a 0xC0000005 access violation (Event ID 1015). After a reboot the cycle repeats. The growth rate correlates with authentication load and faster during peak hours, slower overnight. WinDbg Dump Analysis Captured LSASS dump at high handle count and ran !handle 0 f: Token handles: overwhelmingly dominant Everything else: negligible Every leaked token shows: GrantedAccess: 0x8 (TOKEN_QUERY only) PointerCount: overflowed to negative integer Running !findstack authz 2 shows multiple worker threads all sitting in: authz!AuthzpDeQueueThreadWorker What Was Tested And Eliminated Stopped or disabled each individually and measured handle growth rate — zero meaningful difference from any: - Antivirus (all components) - Backup software - Application services - VSS snapshots - Hardware management agents etc.. Environment OS: Windows Server 2025, fully patched with the latest updates including April LSASS update. Role: Domain Controller DNS PAM: Not active. Conclusion Token handles are opened with TOKEN_QUERY access inside authz!AuthzpDeQueueThreadWorker and never released. Reference counter overflows to negative integer. Growth rate scales directly with authentication load. Current workaround: reboots during off hours. Has anyone else seen this pattern on Windows Server 2025? Is there a known fix or Microsoft acknowledgment for this specific authz token handle leak?
