- Update older systems to use TLS 1.2 as the default protocol.
- Verify protocol support by browsing the SSL/TLS Capabilities of Your Browser.
- Update Windows 7/2008R2 machines to use TLS 1.2 as a default secure protocol: Update to enable TLS 1.1 and TLS 1.2 as a default secure protocols in WinHTTP in Windows.
- Refer to a more in-depth guide to enable TLS 1.2 support in Windows 7 or 2008R2: TLS/SSL Settings.
- If TLS 1.2 has been enabled on the system in question and it is still not reporting in, try turning off TLS 1.0 and TLS 1.1 and see if the connection with the console was resolved.
Legacy Operating Systems had already reached the end-of-support status by Microsoft. Upgrade the Operating Systems to ensure protection against threats and vulnerabilities.
- Windows 7 and 8.1 End of Support: https://www.microsoft.com/en-us/windows/end-of-support?r=1
- Windows Server 2008 / 2008 R2 End of Support: https://learn.microsoft.com/en-us/troubleshoot/windows-server/windows-server-eos-faq/end-of-support-windows-server-2008-2008r2
If the issue persists even after upgrading to the latest supported operating system, consult Trend Micro Technical Support for further instructions.