By default, Windows limits a broadcast to 5 simultaneous connections. You can modify this number by editing the Windows Registry. This is a little technical and if you are not familiar with the Registry I don't recommend you try this without help from someone who is comfortable doing this work.
To increase the number of simultaneous connections:
Click Windows Start > Run then type in 'regedit' and click OK.
Search for the following key;
HKEY_CLASSES_ROOT\Software\Microsoft\Windows Media Tools\Encoder\MaxClientConnections
The default is 5. You can change that to whatever number you want to allow to connect, keeping in mind the limit of the bandwidth available to the PC that is broadcasting from
Security Monitor Pro.