Windows Clients Tunneling in Adobe Connect Meetings
The newest Adobe Connect Meeting Application for Windows including the standalone, lightning and MSI downloads here: https://helpx.adobe.com/adobe-connect/connect-downloads-updates.html
Some legacy Windows 7 clients (and others with later client Windows OS versions) may tunnel into Meetings or experience other connectivity issues when using the latest Meeting application.
To solve this and allow a direct RTMP(S) connection to Connect Meetings for these legacy clients, there are two possible options:
The first approach is to Add the following line to the mms.cfg file in either: /Windows/system32/Macromed/Flash (32-bit Windows) or /Windows/SysWOW64/Macromed/Flash (64-bit Windows).
If the affected Windows 7 client does not have an mms.cfg file, you may create one or download one from here: http://platinum.adobeconnect.com/mms/default/mms.zip
Extract the mms.cfg file and place a copy in: /Windows/system32/Macromed/Flash (32-bit Windows) or /Windows/SysWOW64/Macromed/Flash (64-bit Windows).
Simply add this line to the existing mms.cfg on win 7 clients that are tunneling (where no other clients tunnel). Edit it or create it (it is a simple file to create) or download it and place into the directory listed above.
There is a second option for legacy Windows 7 clients. You may update the client with the following TLS patches: https://support.microsoft.com/en-us/help/3140245/update-to-enable-tls-1-1-and-tls-1-2-as-default-secure-protocols-in-wi
For more details on tunneled connection into Meetings, see the following article: http://blogs.adobe.com/connectsupport/tunneling-with-rtmp-encapsulated-in-http-rtmpt-should-be-avoided-as-it-causes-latency/