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Miro Board Not Loading

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Workaround available Web, desktop, iOS, iPad Updated November 13, 2026Based on 5 user reportsHow we research

Quick answer

A board stuck on the loading screen is usually a network, browser or oversized-board problem, or a Miro incident. Check the status page, then try incognito, a duplicate of the board and a VPN-off test.

Most likely fix: Check whether Miro is down

How to fix it

Try these in order — the most common fix is first.

  1. 1. Check whether Miro is down

    1. Open the Miro status page and look for active incidents on board loading
    2. If one is open, wait; several past loading issues were fixed server-side
    3. Check whether other boards load: if only one fails, go to the duplicate test
    Did this fix it?

  2. 2. Rule out browser problems

    1. Open the board in an incognito or private window
    2. Try a different browser (Chrome, Edge, Firefox) and update it
    3. Clear cache and cookies for miro.com, then reload
    4. For chunk-loading errors do a hard refresh (Ctrl/Cmd+Shift+R)
    Did this fix it?

  3. 3. Rule out network blocks

    1. Turn off VPN, proxy or ad blockers and reload
    2. Make sure your network allows WebSockets and your browser supports WebAssembly (both listed in Miro's troubleshooting checklist)
    3. Try another network such as a phone hotspot
    Did this fix it?

  4. 4. Test the board itself

    1. If the board opens for someone else, ask them to duplicate it and share the copy
    2. If it still fails everywhere, or shows Out of Memory, contact Miro Support with the board URL, browser and the time it started
    Did this fix it?

Symptoms

The board spins forever, shows 'connection restored' in a loop, or errors with 'app initialization failure' or 'loading chunk failed'.

Why it happens

  • Active Miro incident
  • Browser extensions, cache or outdated browser
  • WebSockets or WebAssembly blocked by a firewall, proxy or VPN
  • Board too heavy for the device (Out of Memory)
  • Corrupted object on one specific board

This guide also covers

  • miro board not loading
  • miro stuck on loading screen
  • miro app initialization failure
  • miro connection restored loop
  • miro out of memory error

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