Hi Vinay_K,
I am Saurabh and a Microsoft Consumer Just like you, i am glad to help you and will do my best.
You can attempt the following actions to troubleshoot the problem with Microsoft Defender for iOS and the automatic disabling of VPN and web protection:
Verify the permissions of the app:
Make sure Microsoft Defender on your iOS device has the permissions it needs to operate properly. Check that the Microsoft Defender app has permissions for the VPN and other necessary capabilities by going to your device's settings and finding the app.
Upgrade Microsoft Defender:
Verify that the Microsoft Defender software that you are using is the most recent version available from the software Store. Updates frequently provide enhancements and bug fixes that might take care of problems like these.
Reset the VPN configuration:
Try resetting your iOS device's VPN settings if it is shutting off automatically. Select Settings > General > VPN, then make sure that all of the VPN setups are deleted. Restart your device after that, and adjust the VPN settings as needed.
Empty the App's Cache and Data:
Functionality problems with the Microsoft Defender app can occasionally be fixed by clearing its cache and data. Locate the Microsoft Defender app in your device's settings, then delete its data and cache.
Restart the device:
There are moments when a quick restart of your iOS device can fix brief bugs and problems. Try restarting your device and check if the issue still exists.
Speak with Support:
If none of the aforementioned fixes work to fix the problem, you might want to contact Microsoft Defender support for more help. They might be able to look into the problem more thoroughly or offer specific troubleshooting instructions.
These instructions should help you resolve the Microsoft Defender issue on your iOS device and stop your VPN and web protection from turning off on their own. The next best step would be to get in touch with Microsoft support if the issue continues.
I hope this helps.
Kind Regards,
Saurabh