firewall problem

[landfiets]

Hi, since a few weeks I get a delay in the audio from internal to external.
When people call us there is no problem.

[MS101003] Call(55) Ln:10000@Voipdiscount: Possible firewall problem. Address mapping failed on STUN server 194.221.62.209:3478 for local address ":9000"

is it a port problem? Or what? I consider all ports to be open. I did that allready months ago and it was working fine at that time.

 

[RobLloyd]

Looks like your NAT isn't working properly. It's only showing the final port :9000 not 192.168.1.1:9000 or some real IP address.

Check your router and your firewall again.

 

[landfiets]

firewaill

okay. But whereshould I look in the router. All the ports are open.
Tell me where to look please