Do you have any Antivirus or firewall software running? We need ports 5556 and 5558 open for Videostream to work!
Try this command:
sudo /sbin/iptables -A INPUT -p tcp --dport 5556 -j ACCEPT
sudo /sbin/iptables -A INPUT -p tcp --dport 5558 -j ACCEPT
Or if that doesn't work:
sudo /sbin/iptables -I INPUT -p tcp --dport 5556 -j ACCEPT
sudo /sbin/iptables -I INPUT -p tcp --dport 5558 -j ACCEPT
As well try forgetting your network then reconnecting!