Hi! I understand that your spacedesk app opens fine on your PC but isn't connecting to your phone or iPad. Let's work through this together.

Could you tell me:
1. Are you trying to connect via Wi-Fi (local network) or USB cable?
2. Are both your PC (Windows 10) and your phone/iPad on the same Wi-Fi network?
3. Has this setup ever worked before, or is this a new attempt?
4. Do you get any error messages on the phone/iPad app when trying to connect?

In the meantime, here are some basic steps to check that often resolve connection issues:

1. Ensure both devices are on the same network: Your PC and your phone/iPad must be connected to the same Wi-Fi network. Sometimes having multiple network adapters or VPNs active on your PC can interfere, so please disable any VPNs temporarily and disconnect unused network adapters via Windows Network Settings.

2. Restart spacedesk on both devices: Close the app on your phone/iPad and your PC spacedesk server. Restart the PC spacedesk server app and then the Viewer app on your phone/iPad.

3. Firewall/Antivirus settings: Make sure your Windows Firewall or any antivirus software is not blocking spacedesk. You can temporarily disable the firewall to test connection or add spacedesk to the exceptions list.

4. USB connection (if applicable): If you're connecting via USB cable (not Wi-Fi), ensure that the 'USB iOS' option is enabled in the spacedesk driver console on your PC, and try unplugging and replugging the cable after restarting both devices.

5. App update check: Verify that you have the latest version of spacedesk installed on both your PC and your phone/iPad via the respective app stores.

If those checks don't do the trick, we can try collecting diagnostic data with spacedesk DebugView to get more detailed info.

Could you please let me know what you have already tried or if you notice any specific behavior or messages? That way I can tailor the next steps for you.

I use wifi to connect

Thanks for letting me know you're connecting over Wi-Fi. Let’s focus on a few key areas that commonly cause Wi-Fi connection issues with spacedesk.

Here’s a step-by-step checklist to try:

1. Network Profile on Windows 10:
Make sure your PC’s Wi-Fi network is set to “Private” rather than “Public.” Public networks often block device discovery needed by spacedesk.
- Go to Windows Settings > Network & Internet > Wi-Fi > click your current network > set Network profile to “Private.”

2. Check IP Address and Connection List:
Open the spacedesk Viewer app on your phone/iPad. It should show a list of available servers including your PC with the hostname and IP address. Try selecting that IP address manually if it doesn’t auto-connect.

3. Firewall and Security Software:
Temporarily disable your Windows Firewall or any third-party antivirus/firewall you use, then try reconnecting. If this resolves it, add spacedesk to the allowed apps list in your firewall settings.

4. Router Settings:
Some routers isolate Wi-Fi clients from each other (AP Isolation or Client Isolation). Check your router settings to ensure devices on Wi-Fi can communicate with each other.

5. Restart Devices and Apps:
Turn off/off Wi-Fi on your phone/iPad, restart the spacedesk app there, and restart the spacedesk driver/service on your PC.

6. Update Apps and Drivers:
Confirm you have the latest spacedesk server driver on your PC and the latest spacedesk Viewer app version on your phone/iPad from the app store.

7. Check for VPNs or Multiple Network Adapters:
If you have VPN software or multiple network adapters (like Ethernet + Wi-Fi), try disabling VPNs and unplug Ethernet cables temporarily. Multiple active network adapters can sometimes confuse spacedesk’s detection.

If after all this the app still does not connect or stays stuck on “IP validation in progress,” it can help to collect diagnostic logs with spacedesk DebugView to find the root cause.

For detailed info about network discovery and connection troubleshooting, you can also check the spacedesk manual on network profiles and troubleshooting2 3.

Let me know which steps you've tried or if you need help with any of the above!