Window server standard 2025 라이센서 서버 동작 안됨

Question

회사에서 윈도우 서버 2025 standard 버전을 구매하여 사용중인데요.

원격 접속이 되질 않습니다.
원격 접속하면 아래 이미지와 같은 에러가 발생하고 있습니다.

해결하려고 인터넷 검색, gpt 문의 등을 해봤는데 안되네요.

구매해서 사용하지 못하고있어요. 해결 방법 궁금합니다.

Answer 1

Welcome to the Microsoft Q&A Platform and thank you for your question!

Based on your description and the issue regarding Windows Server Standard 2025 and RDS licensing, allow me to suggest some steps that could be useful in resolving this.

1. Verify Licensing Mode

Ensure your RDS host is configured with the correct licensing mode:

• Open Server Manager → Remote Desktop Services → Overview
• Under Deployment Overview, click Tasks → Edit Deployment Properties
• Go to the RD Licensing tab and confirm the licensing mode (Per Device or Per Use and it depending on your purchased CALs)

2. Install and Activate a License Server

If no license server is installed:

• Open Server Manager → Add Roles and Features
• Install the Remote Desktop Licensing role
• After installation, open Remote Desktop Licensing Manager
• Right-click your server → Activate Server and complete the wizard

3. Add CALs (Client Access Licenses)

Once the license server is activated:

• In RD Licensing Manager, right-click the server → Install Licenses
• Follow the wizard to add your purchased CALs

4. Specify the License Server

Make sure your RDS host knows which license server to use:

• Open Group Policy Editor (gpedit.msc)
• Navigate to Computer Configuration → Administrative Templates → Windows Components → Remote Desktop Services → Remote Desktop Session Host → Licensing

Enable the following:

• Use the specified Remote Desktop license servers → Enter your license server name
• Set the Remote Desktop licensing mode → Select Per User or Per Device

5. Restart Services

After configuration:

• Restart the Remote Desktop Services and Remote Desktop Licensing services
• If needed, reboot the RDS host

6. Troubleshooting if Licensing Errors Persist

If you still see errors such as “The remote session was disconnected because there are no Remote Desktop License Servers available”:

• Review Event Viewer → Applications and Services Logs → Microsoft → Windows → TerminalServices-Licensing for warnings/errors
• Run gpupdate /force to refresh policy
• Ensure firewall allows TCP 135, 3389, 49152–65535 (RPC dynamic ports) and UDP 3389
• If the license server is not being detected, manually add it using RD Licensing Diagnoser (lsdiag.msc)

Reference: Cannot connect to RDS because no RD Licensing servers are available - Windows Server | Microsoft Learn

Please let me know how it goes. Wishing you a successful resolution and a great day!