Note: The solution below does not apply to users who are initially connected without issue but later in the session experience a disconnection/reconnection.
We are addressing this issue so this workaround is only temporary.
For users behind a firewall, such as a residential user behind a high-speed modem, some firewalls block outgoing IPV6 addresses. IPV4 address work fine.
Currently, Pepper Flash running within Mac OS X and Chrome does not have the ability to drop back to IPV4 addresses if the outgoing IPV6 addresses are blocked.
The result is the BigBlueButton client will tunnel, or worse will attempt to tunnel, then trigger a reconnect, which attempts to tunnel, and so on in a cycle.
If you don't understand what any of that means don't worry!! There are two workarounds.
Workaround #1: Use FireFox (Flash on FireFox in Mac OS X does not have this issue).
Workaround #2: Switch the Mac OS X networking to Local-link only via the following steps.
1. On Mac OS X open the System Preferences and type ipv6 in the search vield
2. Press Enter
3. Choose Local-link only in the Configure IPv6 drop-down menu.
4. Click OK.