QOS and MTU settings
A contractor has asserted that latency delays are caused by a "misconfiguration" of the hardware of certain machines that produces flooding of the network with bad packets. They have asserted that they find this when checking out a new site. Is this also associated with a Quality of Service setting on a site's server if it would then release such large number of packets to the network? Does this also require careful adjustment of the MTU (Max. Trans. Unit) settings on each base server? (MS Server setting???) Or does the server simply transmit all the packets it receives from networked machines?
Untagged VLAN - Server 2025 Hyper-V
Hi, I have a strage issue and not finding a solution. Using Server 2025 with two node Hyper-V cluster. Most of the machines using VLANs which works fine. Some machines using no VLAN config. Which usually means the "Access VLAN 1" regarding our switch configuration. With Server 2019 this worked fine. With Server 2025 same NIC port, same server/NIC hardware "Untagged" VMs don't get any network connection. If I add a second NIC to the VM "Untagged" the NIC get immidiatly an IP address and has a proper connection. If I remove the first NIC, the second NIC stop working. It looks like something has changed with Server 2025 (maybe already with Server 2022). Do you have any idea what kinde of problem I have found? Thanks Jack
Deploying Multiple NPS Servers
I have been working on ditching our password-based WiFi with WPA2-Enterprise. On DC1 I deployed internal CA, NPS, and group policies that auto-request certs and deploy wireless network settings. Cisco AP is pointed to DC1 as the radius server. NPS has been registered in AD and wireless network policy has been created. Test laptops get their cert and connect just fine. It's working. For redundancy, I installed NPS on DC2. This NPS instance has also been registered in AD, and I imported the NPS config from DC1 to DC2 NPS. Cisco AP has DC1 as first radius server and DC2 as second radius server. If I stop NPS on DC1 to force the Cisco AP to authenticate against DC2, test laptops won't authenticate and connect. What am I missing? They're configured exactly the same (except DC1 hosts the CA...I was under the assumption the CA is AD integrated).
Advice for replacing a Windows 2012R2 file server
We have a small company network that includes one Windows Server 2012R2 file server necessary to run Sequel for two server hosted business applications, file and print services for the user accounts and is also the Domain Controller for the Active Directory local forest and domain. Six Windows 11 Pro workstations are domain attached to the file server. The workstations all have a local user account and after domain attaching to the file server, a user.Acme user account with Administrator rights to their local computer. Each has its own 192.168.1.x static address and uses their domain user account with mapped drives to access the fileserver. The existing file server name is ACMEWS2012R2, local public static ip 192.168.1.12, DNS Domain Acme.LAN, Netbios name ACME, local accounts are located in \Users\username, and runs SQL Server Express 2012 with default MSSQL database name and mixed security using the SA with password credentials. The new file server will be using Windows Server 2022 (the company apps are not yet certified for 2025) and SQL SVR Express 2022 and I am looking for information about what configuration decisions I can make to hopefully minimize the need to install new user accounts on the workstations, copy all the user folders between users accounts and reinstall applications. My understanding of Domain security is limited, knowing just enough to get workstations attached and properly accessing the file server SQL based applications. My Google results have provided some piecemeal answers, but I would like to better understand the big picture before starting the server upgrade and make some irreversible configuration choices that would cause unnecessary work re-attaching the workstations. I would first ask for recommendations whether and why to keep or change each of the following: The file server machine name The file server 192.168.1.12 IP address The file server Administrator account and password. The Acme.LAN forest and root domain name that was defined after adding the Active Directory Domain Service role that also added File and Print Services and Group Policy Management. The SQL Server Express default MSSQL database name The SQL Server Express SA account name and password I would also ask about the best steps for disconnecting workstations from the old domain then joining the new domain to hopefully retain the existing workstation user account, or if not, to minimize the need to copy users folders between the user accounts and / or uninstall then reinstall the workstation applications to properly authenticate to the new user account. I would greatly appreciate some experienced insights for how to best accomplish these upgrade goals. Thanks, all!Windows Server 2016 and internet issues
Hello everyone, I'm relatively new here and hoping for some help. I'm IT at a school in Manhattan that has an old Dell tower running Windows Server 2016 in the basement that is not in use any more with the school as they have transferred over everything to digital. This was set up before my time working here and the person who set it up unfortunately did not leave any notes. We are ready to disconnect the machine as all of it's functions have been moved elsewhere. But, every time it is turned off or disconnected from our network patch, the internet in the entire building goes dead. I do not have previous experience with these kinds of servers and am trying to figure out what could possibly be causing this. I am concerned because the machine is old and feels like it's being held together by duct tape, and if it goes down, I hoping internet doesn't go with it. Looking for any advice or knowledge about these servers and what I can try to do to disconnect it.Allow to take RDP from Laptop only and not from IP
Hello Experts, We have scenario where , We want to Allow to take RDP from His Laptop only. Which mean user is allowed to take of RDP of Some Server only from his Laptop and not from any other Computers. We have already checked for Windows firewall but it is working for IP based , and We want for Machine based. as user is roaming between Offices. Please suggest if there is any GPO or Policy or Firewall Rule using which If possible to take RDP using Machine based and not IP based. ThanksHyper-v Virtual Switch warning
We have a four nodes Windows 2025 Hyper-v cluster with only one virtual switch of 2 NICS On each node we get this warning repeatedly V-Switch operation IOCTL_SWITCH_GET_INFO_EX (2241648) took too long to complete. Operation Type: IOCTL. Execution time 0 ms. Queued time 0 ms. Expected execution time less than 0 ms. SwitchName: CF06EC90-20EB-460D-9A88-6820BFCCB14D. SwitchFriendlyName: SWPrincipale Searching for it didn't get any useful thread so far, has anyone seen it and found the cause ? thanks
Active Directory Unable to reset user passwords
I am managing a Windows Server 2025 Active Directory environment with client machines. I created a test user and enabled the option “User must change password at next logon.” I then provided a temporary password to the user, expecting them to get the prompt to change it on first login. However, when the user attempts to change the password, they receive the error: “The user must change password before signing in.” My goal is that when I provide a temporary password to a user: They get the prompt to change the password at next logon. When they change it, it should not throw the “user must change password before signing in” error. I need guidance on how to achieve this so users can reset their passwords successfully.
DNS and host domain
I configured a Windows 2019 server with DNS service. The domain is contoso.com. The contoso.com domain is outside the local network. I entered the IP of the external domain and deleted the IPs of the Windows server and the replica server. After a few minutes, the server created two host domains again with the IPs of the DNS servers. How do I prevent it from setting the DNS servers as the host domain?List with FQDNs and IPs for updates via proxy
Good day, I am sorry if its the wrong subspace. I have a couple of Windows servers above or equal server 2016 that do download updates directly from the internet via a proxy. I can not find a website by MS that lists all needed IPs and ports that are to be opened on the proxy to do that successfully. Since a month ago, it failed and we think the reason is that some more requirements we were not aware of were added. Best Regards