Copilot Error and Slowness

Mervin Flaviano 0 Reputation points
2026-11-13T12:39:49.3833333+00:00

Hello,

May I ask for your assistance regarding on the Copilot built-in interface in Edge?

It seems that it's really slow and intermittent.

Base in the image attached, it's just stuck there and it will just return with an error.

Regards,

Mervin Flaviano

Microsoft Copilot | Other
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Answer accepted by question author
Jose Benjamin Solis Nolasco 13,106 Reputation points Volunteer Moderator
2026-11-13T13:19:43.3866667+00:00

Welcome to Microsoft Q&A!

Hello,

What you are experiencing is probably linked to an active Microsoft 365 service incident tracked under ID EX1550543.

Microsoft initially reported intermittent connectivity issues affecting Exchange Online mailboxes in the Americas, and has since updated the advisory to confirm that the issue may impact general Microsoft 365 service connectivity across any region.

What this means for your environment:

  • Affected Services: Primarily Exchange Online / Outlook (desktop client, Outlook on the web, and mobile apps), along with potential authentication or connection timeouts across broader Microsoft 365 services (such as Teams, SharePoint/OneDrive, or the Microsoft 365 Admin Center) that rely on shared front-end connectivity infrastructure.

Action Required: No configuration changes are needed on your tenant or client devices. Microsoft engineering teams are actively working on mitigation.

How to track live status:

Open the Microsoft 365 Admin Center using a Global Admin or Service Support Admin account.

Navigate to Health > Service health.

Search for incident ID EX1550543 for real-time mitigation progress and root cause updates.(You can also follow official updates via @MSFT365Status on X).

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  1. AI answer

    2026-11-13T13:20:52.9633333+00:00

    Open https://edgeservices.bing.com/edgesvc/shell in an Edge tab; if it does not load, the Copilot sidebar cannot reach its service endpoint and the network path must be investigated.^1^

    1. Separate connectivity from a service problem

    The endpoint above applies to consumer Microsoft accounts. Work or school profiles use a configurable MetaOS App Service endpoint, so an administrator may need to identify and test the applicable endpoint.

    • Endpoint does not load: Temporarily test from another network, such as a mobile hotspot. If Copilot works there, this strongly indicates that the original network path—including its proxy, DNS filtering, or firewall—needs investigation.
    • Endpoint loads, but Copilot remains stuck or returns errors: Check the public Microsoft service-health page for an incident and retry later if one is reported.^2^

    The public status page does not currently establish a specific Edge-sidebar outage. An incident affecting another Copilot product should therefore be treated only as a possible related service issue, not confirmation that Edge Copilot is down.

    2. Refresh Edge authentication

    If the sidebar displays Sign in or Try again:

    1. Select Sign in and complete authentication.
    2. If it shows Try again, select the Edge profile icon, sign out of the Edge profile, and sign back in.
    3. Close and reopen the Copilot sidebar.

    These prompts indicate that Edge could not obtain a valid authentication token for the selected profile.^1^

    3. Run the connectivity diagnostic

    On Windows:

    1. Open Start → Get Help.
    2. Search for Copilot connectivity troubleshooter.
    3. Start the troubleshooter and review its findings.

    It checks for firewall rules and other connection blockers.^3^

    4. If this is an organization-managed device

    Open edge://policy and inspect:

    • EdgeSidebarAppUrlHostBlockList
    • EdgeSidebarAppUrlHostAllowList

    If the block list is *, the allow list must contain:

    • All versions: edge://discover-chat
    • Edge 145 and earlier: edge://hub-app-store
    • Edge 146 and later: edge://commercial-copilot-chat
    • Edge 146 and later: chrome-untrusted://commercial-copilot-chat

    If entries are missing, ask the IT administrator to add them through Group Policy, Intune, or the organization’s MDM solution, then restart Edge.^1^

    5. Browser repair fallbacks

    If connectivity, authentication, and policies are not the issue:

    1. Open Edge → Settings and more → Settings → About Microsoft Edge.
    2. Install any available update and restart Edge.
    3. If the problem continues, close Edge and go to Windows Settings → Apps → Installed apps → Microsoft Edge → Modify → Repair.

    Repair requires administrative rights but should not affect browser data or settings.^4^

    If it still fails, submit a report from Edge → Settings and more → Help and feedback → Send feedback. Include the screenshot, approximate failure time, Edge version, account type, and whether the consumer endpoint loaded.

    References

    1. Fix Copilot Chat loading issues in Edge Sidebar - Microsoft Edge
    2. Microsoft service health status
    3. Copilot troubleshooters | Microsoft Support
    4. What to do if Microsoft Edge isn't working | Microsoft Support
    AI-generated content may be incorrect. Read our transparency notes for more information.

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