Desktop & web

RingCentral Scheduler for On-Premise Exchange
Microsoft accounts installation FAQ | RingCentral app

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.”
Error message for Exchange 2013
 
To resolve this issue, you need to update On-Premise Exchange 2013 to the latest version. You can find the file here.
Update On-Premise Exchange 2013 to the latest version
 
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.
Exchange 2016 error message
 
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

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.
Internet explorer error
 
To resolve this issue, you need to add domains to your trusted domains list.

Adding domains to your trusted domains list

  1. Click Tools on the top-right corner of your Internet Explorer window.
  2. Select Internet options.
  3. Click Security, and then select Trusted sites.
  4. Click Sites.
  5. Add the following:
    1. https://apps.ringcentral.com/
    2. https://api-rcapps.ringcentral.biz/
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