Windows 7 and Exchange 2016 Disconnected
If you’re getting an Outlook Disconnected message on your Outlook recently, it may be due to the fact that your Windows 7 does not have the TLS 1.1 and TLS 1.2 support on the operating system. This is an easy fix for the Windows 7 and Exchange disconnected error.
Users of Windows 10 will not be affected from this.
Simply download the easy fix software from Microsoft’s website:
A brief explanation of what the fix does is shown below:
On x64-based computers, DefaultSecureProtocols must also be added to the Wow6432Node path:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp
The registry value is a DWORD bitmap. The value to use is determined by adding the values corresponding to the protocols desired.
|Enable SSL 2.0 by default
|Enable SSL 3.0 by default
|Enable TLS 1.0 by default
|Enable TLS 1.1 by default
|Enable TLS 1.2 by default
After the fix has been applied, you will now need to reboot. After the reboot the Outlook will renegotiate and connect again to the server. This is a security flaw based in Windows 7 and not related to our hosting services.