Microsoft Loop Unable to Connect

How to fix it

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

1. 1. Check service health

   Copy steps
   1. Admins: Microsoft 365 admin center > Health > Service health
   2. If an incident is listed, wait for it to clear
   Did this fix it? Yes No

2. 2. Test another network

   Copy steps
   1. Switch to a phone hotspot without VPN
   2. If it works, ask your network admin to allow the Microsoft 365 URLs and IP ranges published by Microsoft
   Did this fix it? Yes No

3. 3. Clear the session

   Copy steps
   1. Open Loop in a private window
   2. Clear browser cache and cookies, then sign out and back in
   Did this fix it? Yes No

Symptoms

Loop cannot load, shows an unable to connect message and keeps trying to reconnect in Chrome, Firefox and Safari, on work, home and VPN networks.

Why it happens

• Microsoft 365 service problem (check service health)
• Firewall, proxy or VPN blocking Microsoft 365 endpoints or WebSocket connections (inference, not confirmed)
• Stale browser sessions or cached data

This guide also covers

• microsoft loop unable to connect
• loop keeps trying to reconnect
• loop not loading
• microsoft loop not working

The same problem in other apps

All not loading, error messages & connection guides →

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• Coda "Cross-Doc Couldn't Receive Edits" Error (Coda)
• ClickUp So Slow or Not Loading (ClickUp)
• Obsidian Stuck on Loading Cache or Slow to Start (Obsidian)

Other Microsoft Loop errors

• Loop Component Not Showing in Teams or Outlook
• Teams Meeting Loop Agenda Not Working or Syncing
• Can't Create a Workspace in Microsoft Loop
• Loop Component Asks for Access or Can't Be Edited by Recipients
• Microsoft Loop Sync Error and Slow Pages
• Loop Task List Not Syncing With Planner or To Do
• Microsoft Loop Workspaces Disappeared
• How to Export or Back Up Microsoft Loop