How to Fix Microsoft 365 Sign-In Blocked Due to Conditional Access Policy in Australia

Summary

This guide helps you troubleshoot and resolve: How to Fix Microsoft 365 Sign-In Blocked Due to Conditional Access Policy in Australia. Follow the steps below to fix the issue.

Common Causes

Microsoft 365 Conditional Access policies are used by your organisation to protect company data by restricting sign-ins based on location, device compliance, and other security signals. If you are attempting to log in from outside Australia or using a personal device that is not managed by your IT provider, you may receive a sign-in blocked error. This guide explains how to resolve these access issues.

Quick Fix Steps

1. Verify that you are connecting from within Australia.
2. Ensure you are using a company-managed device enrolled with Microsoft Intune.
3. Clear your browser cache and cookies, then attempt to sign in again.
4. If you are travelling overseas, contact your administrator to request a temporary access exception.

Detailed Instructions

Check Your Sign-In Location

Many organisations configure Conditional Access policies to block sign-ins originating from outside Australia. If you are travelling or using a VPN with an international exit point, your login may be denied.

1. Disconnect from any VPN or proxy service.
2. Confirm your physical location is within Australia.
3. Open your browser and navigate to https://www.office.com.
4. Enter your work email address and password.

Use a Managed Device

Conditional Access often requires devices to be marked as compliant. Personal devices or devices not enrolled with your organisation's mobile device management may be blocked.

1. Ensure your laptop or desktop is enrolled with Microsoft Intune or your organisation's device management platform.
2. On Windows, open Settings, then select Accounts > Access work or school.
3. Confirm your work account is connected and shows as Connected.
4. On macOS, install the Company Portal app from the App Store and sign in with your work account to enrol the device.

Clear Browser Cache and Cookies

Stored authentication data can sometimes conflict with updated Conditional Access policies.

1. Open your browser settings.
2. Navigate to the privacy or browsing data section.
3. Select Clear browsing data or Clear history.
4. Ensure Cookies and other site data and Cached images and files are selected.
5. Restart your browser and attempt to sign in to Microsoft 365 again.

If you use Microsoft Authenticator for multi-factor authentication, ensure the app is installed on your mobile device and that you approve the sign-in prompt when it appears.

Error: Your sign-in was blocked by Conditional Access

This error means your login attempt did not meet the security requirements set by your organisation. Common reasons include:

• Signing in from a country outside Australia.
• Using an unmanaged or non-compliant device.
• Failing multi-factor authentication requirements.
• Using an unsupported or outdated browser.

Error: Device compliance required

Your device does not meet the organisation's security standards. To resolve this:

1. Install all available Windows or macOS updates.
2. Ensure antivirus protection is active and up to date.
3. Open the Company Portal app and check for any device compliance actions required.
4. Restart your device and try signing in again.

Do not attempt to bypass Conditional Access policies by using unauthorised VPNs or proxy services. This may trigger security alerts and result in your account being temporarily locked.

If you have verified your location, confirmed your device is managed, and cleared your browser data but still cannot sign in, your administrator may need to adjust your Conditional Access policy or grant a temporary exclusion. Open a Ticket with 220 Internet Services support for assistance.

Still Having Issues?