Update (2025-12-29 03:04 CET): New discussions highlight emerging issues with Synology NAS connectivity under specific Windows 11 security patches. Ensure to review your system updates closely for any impacts on NAS access.
Accessing your Synology NAS from a Windows 11 PC can sometimes be challenging. This guide helps you identify and resolve common connectivity issues, ensuring smooth operation of your network attached storage.
Introduction to the Problem
Network Attached Storage (NAS) devices like Synology are integral to many networks, providing centralized storage. However, Windows 11 users may experience access issues, primarily due to network configuration and security settings.
Common Causes for NAS Access Issues
A few common culprits often cause connectivity problems:
- Firewall settings blocking inbound or outbound traffic
- Incorrect network credentials or permissions
- TLS communication errors due to outdated protocols
- iSCSI configuration issues affecting access
Diagnosing with Network Tools
Using network diagnostic tools can help pinpoint issues.
ping NAS-IP netsh advfirewall show allprofiles telnet NAS-IP 443
Configuring Windows Firewall and Security Settings
Ensure that the Windows Firewall is configured to allow NAS access:
Open Windows Security and go to Firewall & Network Protection. Allow the Synology apps through the firewall.
Resolving TLS Communication Problems
TLS issues can prevent secure connections to your NAS. Update your certificates and ensure both the NAS and PC use compatible TLS versions.
iSCSI Connection Troubleshooting
For iSCSI issues, check the initiator status on Windows:
Get-InitiatorSession
Conclusion and Preventive Measures
Regularly update both NAS and Windows systems, review security settings, and maintain accurate logs. This proactive approach minimizes potential disruptions.
Sources
You can read discussions and solutions on this topic at Reddit /r/sysadmin.
Transparency note: AI-assisted writing; verified by automation tools to ensure source accuracy.