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Quick Fix for Microsoft 365 and Outlook Connection Problems on Windows in China

Fix Microsoft 365 and Outlook issues in China

If your network is working but some programs, such as Microsoft 365, Outlook, or VPNs, are having trouble connecting, the issue might be with your system’s security settings. This is common in situations where some applications can’t log in or send emails. 

One solution is to enable TLS 1.2 in your system’s Internet Options.

Why Enable TLS 1.2?

TLS (Transport Layer Security) is a protocol for secure data transmission over networks. With TLS 1.0 and 1.1 being phased out in recent years, enabling TLS 1.2 has become crucial. Many modern applications require TLS 1.2 for secure communication. Without it, programs like Microsoft 365 and VPNs may fail to connect or operate properly.

How to Enable TLS 1.2

Enabling TLS 1.2 ensures secure data transmission and can resolve connectivity issues. Here’s how to do it on a Windows system:

Control Panel: Go to the Control Panel in your Windows system.

Internet Options: Open “Internet Options.”

Advanced Tab: Navigate to the “Advanced” tab.

Enable TLS 1.2: Scroll down to find “Use TLS 1.2.” Check this option if it hasn’t already been enabled.

Advanced Configuration for Servers

You may need to modify the system registry for more complex setups, such as configuring TLS 1.2 on Windows Servers (2019, 2016, 2012 R2). This involves creating new keys to support TLS 1.2. After making these changes, a system restart is necessary to apply them.

Conclusion

Enabling TLS 1.2 can address many connection issues with software like Gestione e ottimizzazione di Microsoft 365, Outlook, and VPNs. This change improves security and ensures your applications can connect to the internet securely and reliably.

Need Help?

JET IT Services can assist if you’re experiencing network issues or need help enabling TLS 1.2. CONTATTACI  for professional support to keep your network running smoothly and securely.

About JET IT Services

JET helps businesses in China overcome IT challenges with reliable, compliant, and secure solutions. From network optimization to cybersecurity, we ensure your IT systems run smoothly so you can focus on what matters most—growing your business!