microsoft defender

Beth Hallingbye 0 Reputation points
2026-05-27T20:34:16.25+00:00

we recently purchased iphone 17pros and now are unable to open apps due to microsoft defender vpn blocking. how do i fix this?

Microsoft 365 and Office | Microsoft 365 Defender | For home | iOS
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  1. AI answer

    2026-05-27T20:34:32.47+00:00

    Microsoft Defender on iOS uses a local VPN to provide web protection. Some apps stop working when they detect any active VPN. To fix this, temporarily disable the Defender VPN on the iPhone 17 Pro devices.

    Follow these steps on each iPhone:

    1. Open the Settings app.
    2. Go to General > VPN.
    3. Find the entry for Microsoft Defender or Defender for Endpoint.
    4. Tap the i button next to it.
    5. Turn off Connect On Demand.

    This disables the Defender VPN and allows apps that block VPNs to work. Be aware that web protection is not available while the VPN is disabled. To turn protection back on later, open the Microsoft Defender app and re-enable web protection or start the VPN from within the app.

    If specific apps only fail when Defender VPN is on, use this toggle only while using those apps, then turn it back on to restore protection.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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  2. Beth Hallingbye 0 Reputation points
    2026-05-27T20:43:15.1633333+00:00

    what is the point of having a web protector if you have to turn it off to open apps?

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  3. John Jefferson Doyon 87,495 Reputation points Independent Advisor
    2026-05-27T21:12:47.2933333+00:00

    Hi, I'm John! I will help you with this.

    Microsoft Defender VPN or Web Protection should not normally block most apps. Which apps are being blocked? Banking apps, social media, games, or all apps? Do you see any specific error message from Defender or the iPhone?

    In the meantime, if you haven’t already already:

    On the iPhone, go to:

    • Settings > VPN
    • Then temporarily disconnect the Microsoft Defender VPN and test the apps again.

    If the apps open normally after that, the issue is likely related to web Protection filtering, DNS filtering, Or a VPN conflict with the apps or network

    Also check if: Settings > General > VPN & Device Management, if it shows multiple VPNs installed, since another VPN or security app can conflict with Defender.

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