Does Microsoft still support PowerPoint online broadcast? When I go to File/Share/Present Online I get an error message:

Cannot connect to this service.

Running Office 365 and have tried on multiple computers and networks.

Hi,

Yes, we still can use this feature through PowerPoint Online.

Reference:

https://technet.microsoft.com/en-us/library/powerpoint-online-service-description.aspx?f=255&MSPPError=-2147217396

Weve improved the capabilities of the PowerPoint 2010 Broadcast Service, and we are calling this new service the Office Presentation Service. All you need is a Microsoft account and Microsoft Office 2013. Please check the Prerequisites first.

If you do not use the enterprise subscription plan for Office 365, we just need Windows Live ID account. Steps:

https://blogs.office.com/2012/09/28/powerpoint-2013-present-a-powerpoint-file-online/

If you have the enterprise subscription plan for Office 365, it allows any organization to set up its own private broadcast service, using a site collection on SharePoint Online created with the PowerPoint Broadcast service.

Follow these steps to set up the service if you have administrator permissions:

1. From the Microsoft Online Services Portal, click Manage under SharePoint Online.

2. From the Administration Center, click Manage Site Collections.

3. Under Site Collections on the right pane, click New and then select Private Site Collection.

4. Give your site collection a title, an address, and select the language.

5. Under Select a template, click the Enterprise tab and then select PowerPoint Broadcast Site.

6. Select the time zone, enter the Administrator name, the storage limit, and the resource usage limit.

7. Click OK.

Hope it's helpful.

Regards,

George Zhao
TechNet Community Support