Your Synology router is a powerful tool for network management, but it can inadvertently expose your DNS queries even when a VPN is active. This guide will show you how to configure SRM to prevent VPN DNS leaks, ensuring your browsing stays private and secure. By the end, you’ll have a locked-down setup that keeps your DNS requests encrypted and away from prying eyes.
- Why DNS leaks happen on Synology routers and how to detect them
- Step-by-step SRM configuration to enforce VPN-only DNS
- Recommended VPNs with robust leak protection features
Understanding DNS Leaks and Why They Matter
A DNS leak occurs when your device bypasses the VPN tunnel and sends DNS requests directly to your ISP’s servers. This exposes your browsing history and undermines the privacy you expect from a VPN. On Synology routers, misconfigured SRM settings or conflicting network rules are common culprits. Even if your VPN claims to have DNS leak protection, router-level configurations require manual oversight to ensure everything routes correctly.
How to Check for DNS Leaks
Before making changes, verify if your current setup is leaking. Visit a DNS leak test website (we recommend dnsleaktest.com) while connected to your VPN. If the results show your ISP’s DNS servers instead of your VPN provider’s, you have a leak. Note the results so you can confirm the fix later.
Configuring SRM for VPN-Only DNS
Synology Router Manager (SRM) provides granular control over network settings. Follow these steps to enforce DNS routing through your VPN connection.
Step 1: Set Up VPN Connection in SRM
If you haven’t already, configure your VPN in SRM. Navigate to Network Center > VPN > Add Profile. Choose your VPN protocol (OpenVPN is widely supported) and enter the details provided by your VPN service. For reliable integration, we recommend NordVPN or Surfshark, both of which offer dedicated router support.
Step 2: Assign Static DNS Servers
Go to Network Center > Internet > IPv4 and set the DNS servers manually. Use your VPN provider’s DNS addresses (e.g., NordVPN uses 103.86.96.100 and 103.86.99.100). This ensures that even if the VPN disconnects, your router won’t fall back to ISP DNS.
Step 3: Create VPN-Specific Network Rules
In Network Center > Traffic Control, create a rule that forces all traffic through the VPN interface. Assign a high priority to this rule to override any default routes. Test the connection again using the DNS leak test to confirm everything is routing correctly.
Best VPNs for Synology Router Compatibility
Not all VPNs work seamlessly with SRM. Look for providers that offer dedicated router apps, static DNS addresses, and robust leak protection. Here are our top picks:
- NordVPN: Offers easy OpenVPN configuration files, dedicated DNS servers, and a strict no-logs policy.
- ExpressVPN: Provides custom firmware for some routers and detailed setup guides for Synology devices.
- Surfshark: Supports unlimited devices and includes clean, leak-resistant DNS options.
Testing and Maintaining Your Setup
After configuring SRM, run periodic DNS leak tests to ensure ongoing protection. Update your VPN credentials and SRM firmware regularly to avoid compatibility issues. If you experience drops in connectivity, check your VPN’s status page or consider switching to a more router-friendly service like Private Internet Access.
Final Thoughts
Configuring your Synology router to prevent VPN DNS leaks is a straightforward process with SRM’s built-in tools. By assigning VPN-specific DNS and creating traffic rules, you can browse with confidence knowing your requests are encrypted. For more tips on securing your network, explore our privacy guides or check the latest VPN deals to upgrade your protection today.
Ready to lock down your DNS? Get NordVPN now and enjoy leak-proof browsing on your Synology router.
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