Steps to reproduce this issue are:
1. Try to Join a meeting from Portal, before meeting starts.
Message "There is no meeting in the specified meeting room. Please check the meeting room and the meeting time"
2. Start a meeting from Portal. ( by Click on Host Meeting, Start now)
3. During the Environment checks, and before the meeting start if Attendee keep trying to Join. Again, The same message is displayed.
4. Then, the meeting starts. But Attendee cannot join still with same message being displayed.
5. The corresponding meeting key is also not displayed in Current Conferences in AdminRoot.action
6. The meeting still continues, with no other Attendees able to join it.