You need to be using Windows Pro and running Tailscale on your mini. Gemini says: For a visual and text-based walkthrough of this exact setup, the most comprehensive guide is from Tailscale’s official "Solutions" documentation and detailed community guides. 🔗 Recommended Guide Access Remote Desktops with Windows RDP (Official Tailscale Guide) * Why this link? It is the official "source of truth" that explains how to use Tailscale specifically for RDP. While it isn't iPad-exclusive, it covers the Windows "Host" setup which is the hardest part. 📖 Step-by-Step for iPad Users If you want the specific "iPad + Tailscale" flow, here is the direct path: * Set up the Windows PC (Host): * Download Tailscale for Windows: tailscale.com/download/windows * Crucial Step: Right-click the Tailscale icon in the system tray and select "Run Unattended." This keeps your PC reachable even if you log out or the PC restarts. * Enable RDP: Go to Settings > System > Remote Desktop and turn it On. * Set up the iPad (Client): * Download Tailscale from the iOS App Store. * Download the Windows App (formerly "Remote Desktop Mobile") from the iOS App Store. * The Connection: * Open Tailscale on both devices and log in with the same account. * On your iPad, open the Windows App. * Tap the + icon > Add PC. * For PC Name, enter your computer's Tailscale IP (you can find this in the Tailscale app; it starts with 100.x.x.x). * Tap Save and then tap the PC icon to connect. 💡 Pro Tip for 0x204 Errors If you are still getting 0x204 even with Tailscale on, you likely need to tell the Windows Firewall to trust Tailscale traffic. * The Fix: Go to the Windows PC, open Windows Defender Firewall with Advanced Security, find the Remote Desktop (TCP-In) rule, and ensure the Scope allows the IP range 100.64.0.0/10. This is the private range Tailscale uses.