Knowledge Base

Microsoft 365 sign-in screen appears blank when configuring a connection to Exchange Online


When configuring a connection to Microsoft 365 (Exchange Online) in CodeTwo backup or migration software, the Microsoft sign-in screen is not displayed correctly (blank screen is shown) and you cannot enter your credentials. This is similar to what is shown in Fig. 1.

Blank Microsoft 365 sign-in screen.
Fig. 1. Blank Microsoft 365 sign-in screen.


This problem is not caused by the CodeTwo products but can be related to Internet Explorer settings or other Internet options on your machine. Try using one of the following solutions:

Enable automatic network configuration

  1. Open the Start menu and type Internet Options – click the Internet Options app to open it.
  2. Go to the Connections tab and click the LAN settings button (Fig. 2.).

Accessing the LAN network settings.
Fig. 2. Accessing the LAN network settings.

  1. In the popup window that opens, select the Automatically detect settings checkbox and click OK (Fig. 3.).

Enabling the automatic configuration of network.
Fig. 3. Enabling the automatic configuration of network.

  1. Close the Internet Properties window and try signing in to Microsoft 365 again.

Reset Internet Explorer settings


This method cannot be used with those Windows operating system versions, on which Internet Explorer has been disabled by Microsoft. Instead, try the solution from this section.

To restore the default Internet Explorer settings, follow the steps below:

  1. Open Internet Explorer, click the Tools button in the top right corner and select Internet options from the menu (Fig. 4.).

Opening Internet options in Internet Explorer.
Fig. 4. Opening Internet options in Internet Explorer.

  1. In the window that opens, go to the Advanced tab and click the Reset button (Fig. 5.).

Resetting Internet Explorer's settings to their default values.
Fig. 5. Resetting Internet Explorer's settings to their default values.

  1. In the Reset Internet Explorer Settings window, select the checkbox to delete personal settings and confirm by clicking the Reset button (Fig. 6.).

Deleting all personal settings.
Fig. 6. Deleting all personal settings.

  1. When the default settings are restored, click Close.

The Microsoft sign-in screen should now display correctly. If not, try also reinstalling Internet Explorer on your machine.

Other quick-fix solutions

Here are some quick fixes you might consider applying if none of the above helped:

Connect using a different network connection

When experiencing the blank sign-in screen, try to connect to the Internet using a different network connection. For example, if you’re using a LAN connection, try switching to a local Wi-Fi network or a Wi-Fi network shared via a mobile hotspot by using Wi-Fi menu in the Notifications area (Fig. 7.).

Changing network connection in Windows 10.
Fig. 7. Changing network connection in Windows 10.

Change DNS server settings

For some users, changing DNS server settings in Windows helped to eliminate the blank screen issue. To see how to do it, see the instructions from Microsoft for Windows 7 and later.

In the Edit IP settings popup window (Fig. 8.), provide DNS server addresses of one of the following DNS providers:

 Preferred DNS serverAlternate DNS server

Changing DNS server settings in Windows 10.
Fig. 8. Changing DNS server settings in Windows 10.

Check local security policies

Check if there's any security policy implemented in your environment that blocks web content from being displayed in the Internet Explorer window. If you’re not an IT administrator, ask one for assistance.

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