Desktop & web
RingCentral Scheduler for On-Premise Exchange
Microsoft accounts installation FAQ
Last updated on October 11, 2021
The following is a list of Frequently Asked Questions (FAQs) about installing RingCentral Scheduler for On-Premise Exchange Microsoft accounts.
Why doesn’t the RingCentral Scheduler add-in install on On-Premise Exchange 2013?
When installing the add-in for On-Premise Exchange 2013, you might encounter the following error: “This app isn’t supported by the version of Exchange Server that your account connects to.”
To resolve this issue, you need to update On-Premise Exchange 2013 to the latest version. You can find the file here.
You can refer to Install or remove add-ins for Outlook for your Exchange 2013 organization for more information on updating your On-Premise Exchange to the latest version.
Why doesn’t the RingCentral Scheduler add-in install on On-Premise Exchange 2016?
When installing the add-in for On-Premise Exchange 2013, you might encounter the following error: “The app couldn’t be downloaded.” This may be because the .NET Client doesn’t support TLS 1.2 by default.
To check if this is a TLS issue, run the following in PowerShell: Invoke-WebRequest https://appsource.microsoft.com/
If you see the following error, you should enable TLS 1.2 support for .NET.
PS C:\> Invoke-WebRequest https://appsource.microsoft.com/
Invoke-WebRequest : The underlying connection was closed: An unexpected error occurred on a send.
At line:1 char:1
+ Invoke-WebRequest https://appsource.microsoft.com/
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest)
[Invoke-WebRequest], WebException
+ FullyQualifiedErrorId :
WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeWebRequestCommand
To learn more on how to resolve this issue, visit Configure the .NET Framework to support TLS 1.2 and Error when you install add-ins by using Microsoft Store on Exchange Server 2016: The app couldn't be downloaded.
Why can’t I sign in to RingCentral using Internet Explorer?
When you use Internet Explorer as your browser, you might encounter sign-in errors.
To resolve this issue, you need to add domains to your trusted domains list.
Adding domains to your trusted domains list
- Click Tools on the top-right corner of your Internet Explorer window.
- Select Internet options.
- Click Security, and then select Trusted sites.
- Click Sites.
- Add the following:
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