Principle Mirror Not Connecting to iPhone

How to fix it

// try these in order, the most common fix is first

1. FIX 1Join the same Wi-Fi

   Copy steps
   1. 01Put both on the same non-guest network
   2. 02Disable VPN on both
   Did this fix it? Yes No

2. FIX 2Allow local network access

   Copy steps
   1. 01iPhone Settings > Privacy & Security > Local Network
   2. 02Enable Principle Mirror
   Did this fix it? Yes No

3. FIX 3Connect by USB

   Copy steps
   1. 01Plug in the iPhone, tap Trust
   2. 02Pick the device in Principle Mirror menu
   Did this fix it? Yes No

4. FIX 4Update both apps

   1. 01Update Principle on the Mac and Mirror from the App Store
   Did this fix it? Yes No

Symptoms

Mirror app on iPhone shows no Mac, prototype does not load, or it disconnects.

Why it happens

• C-01Mac and iPhone on different Wi-Fi networks or guest network with client isolation
• C-02Lightning/USB cable not trusted
• C-03Outdated Principle Mirror app
• C-04Local network permission denied on iOS

// this guide also covers

• principle mirror not connecting
• principle mirror iphone not working
• principle mirror usb

The same problem in other apps

All not loading, error messages & connection guides →

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Other Principle errors

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• Principle for Windows: Is There a Version?
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• Principle Share to Web Not Working
• Principle App Crashing or Running Slow
• Principle License Renewal and Updates Explained
• Cancel Principle and Get a Refund
• Principle .prd File Won't Open