Download Slido for PowerPoint for Admins

Hello,

The sli.do addin for PowerPoint does not seem to like a proxy server with authentication.

The log:

13:55:51.775 INF] The addin is connected to Slido API through a proxy. (Proxy server address: "http://xxxxxxx:8012/").  real servername replace by xxxxx
[13:55:52.519 ERR] Unable to create a new app instance on server. Missing proxy authentication (required scheme "BASIC realm="PROXY_INTERNET"").
System.Net.WebException: The remote server returned an error: (407) Proxy Authentication Required.
   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)

So it detects very well the correct proxyserver, but there is no prompt for a login/pwd for the proxyserver, as most programs do in such case.

William

Troubleshooting

If this guidance hasn’t helped, we’re happy to help! Start a chat from our website or send us an email at support@slido.com.

Please include the log files in your email or add them as an attachment in the chat.

How to get logs

1. Click Start, type Slido and launch it
2. Right-click the “S” icon in the system tray (bottom-right corner)
3. Select Get logs
4. Attach the generated .zip file to the email

Troubleshooting Slido for PowerPoint

Symptoms:

• Slido button is not available in the PowerPoint
• Sidebar is not loading and/or it shows an error

This may be caused by the policy set in Windows Defender which prevents add-in to be loaded by PowerPoint or by blocking child processes to be created by Microsoft Office applications. If you use management software to block this kind of behavior in Microsoft Office applications, please reconfigure it to enable Slido add-in to work properly.

Slido for PowerPoint requires the process CefSharp.BrowserSubprocess.exe to be run as a child process of Microsoft PowerPoint.

If you’re using Microsoft Endpoint Manager (former Microsoft Intune) to manage the devices, you may have to configure the Attack Surface Reduction policy to enable Slido for PowerPoint.

You can adjust the Endpoint Security Policy to exclude Slido for Windows installation path from Attack Surface Reduction rules. Here are the steps:

1. Open Microsoft Endpoint Manager console
2. Got to Endpoint security
3. In the Manage section, open Attack surface reduction
4. Select existing policy which has the Block all Office applications from creating child processes setting enabled
5. Go through the wizard and configure the policy rule Exclude files and paths from attack surface reduction rules.
6. Enter the path %ProgramFiles(x86)%\Slido\Slido for Windows to exclude Slido add-in and CefSharp browser processes from this rule
7. Save the policy

Hi @Deepshikha, 

It sounds as if your Slido add-in may be blocked by your organizations group policy settings. Your IT administrator should be able to assist with this. 

Let me know if this works!

Best,