What port does KMS use?
By default, the clients use the 1688 TCP port to connect to the KMS host. Make sure that this port is open between your KMS clients and the KMS host. You can change or configure the port on the KMS host. During their communication, the KMS host sends the port designation to the KMS clients.
KMS TCP listening port – By default, the KMS host is listening on port 1688 (TCP). You can change the port if needed using this setting.
- To install the KMS key, type slmgr. vbs /ipk <KmsKey> .
- To activate online, type slmgr. vbs /ato .
- To activate by telephone, follow these steps: Run slmgr. vbs /dti and confirm the installation ID.
KMS uses a client-server model to active Windows clients and is used for volume activation on your local network. KMS clients connect to a KMS server, called the KMS host, for activation. The KMS clients that a KMS host can activate are dependent on the host key used to activate the KMS host.
https://www.microsoft.com:443
If the Microsoft page opens in the browser, port 443 is open. If the connection timed out, traffic through port 443 may be blocked.
Finding the KMS Server on your network is fairly easy. On a Windows 2008 R2 Server or Windows 7 client, run “slmgr. vbs /dlv” on the server and it should return the name of the KMS Server. Additional options for the slmr.
Microsoft Windows Networking Services
Port 135 is used for RPC client-server communication; ports 139 and 445 are used for authentication and file sharing. UDP ports 137 and 138 are used for local NetBIOS browser, naming, and lookup functions.
- On a KMS client, open an elevated Command Prompt window.
- Depending on your implementation, follow one of these steps: To assign a KMS host by using the FQDN of the host, run the following command: cmd Copy. cscript \windows\system32\slmgr.vbs -skms <KMS_FQDN>:<port>
The main advantages of KMS activation: KMS clients do not need to access the Internet or the phone to activate the product (only network access to the KMS server is required);
The Microsoft Key Management Server (KMS) is part of the Microsoft Volume Activation 2.0 solution managing Windows OS activation keys and performs activation for supported clients automatically.
How do I know if my KMS server is working?
To check if the client computer is properly activated, you can either check in the Control Panel System or run the SLMgr script in the command prompt. To check run Slmgr. vbs with the /dli command-line option. It will give you details about the Windows installation and its activation and licensing status.
We recommend only having a single KMS host for both Windows and Office. Having more than one KMS host on a network is not necessary and it adds more administration work to implement. The additional work involves preparing DNS to let multiple computers manage _VLMCS records.
Port 137 is utilized by NetBIOS Name service. Enabling NetBIOS services provide access to shared resources like files and printers not only to your network computers but also to anyone across the internet. Therefore it is advisable to block port 137 in the Firewall.
KMS (Key Management Service) is one of the methods to activate Microsoft Windows and Microsoft Office. Activation ensures that the software is obtained from and licensed by Microsoft. KMS is used by volume license customers, usually medium to large businesses, schools, and non-profits.
- Log into your computer with an administrator account.
- Type into the search field. cmd.exe.
- Click with the right mouse button on cmd.exe and select “Run as Administrator”
- Enter. ...
- To complete the activation process enter.
KMS (Key Management Service) is an activation service that allows organizations to manage the activation of their Windows systems and Office by eliminating the need for individual computers to connect to Microsoft for product activation.
- Go to Control Panel > System and Security > Windows Firewall (or Windows Defender Firewall).
- Click the Allow an app or feature through Windows Firewall link.
- Click the Change Settings button.
- Select the check box for Key Management Service and then choose OK.
- On a KMS client, open an elevated Command Prompt window.
- Depending on your implementation, follow one of these steps: To assign a KMS host by using the FQDN of the host, run the following command: cmd Copy. cscript \windows\system32\slmgr.vbs -skms <KMS_FQDN>:<port>
The Microsoft Key Management Server (KMS) is part of the Microsoft Volume Activation 2.0 solution managing Windows OS activation keys and performs activation for supported clients automatically.