Greetings 

We hav setup BBB with Freeswitch
We have problems with sound errors
We get 1006 timeout errors 
Our setup is as follows 

I have change the firewall NAT Rule Like below

iptables -t nat -A PREROUTING -i $fwan -d (Public IP) -p tcp -m multiport --dports 5066,7443 -j DNAT --to 192.168.1.130

iptables -t nat -A PREROUTING -i $fwan -d (Public IP) -p udp -m multiport --dports 16384:32768 -j DNAT --to 192.168.1.130




firewall NAT Prerouting test :
external pc :
netcat external_ip 5066
hello
bigbluebutton server:
netcat -l 5066
hello

netcat test is ok.

but still system has 1006 timeout error
in /opt/freeswitch/log/freeswitch.log

2020-06-03 09:50:35.120445 [DEBUG] mod_verto.c:4271 192.168.1.5:35990 Client Connect from 192.168.1.5:35990 accepted
2020-06-03 09:50:35.120445 [DEBUG] mod_verto.c:2019 192.168.1.5:35990 Starting client thread.
2020-06-03 09:50:35.120445 [NOTICE] mod_verto.c:1875 192.168.1.5:35990 WS SETUP FAILED
2020-06-03 09:50:35.120445 [DEBUG] mod_verto.c:2046 192.168.1.5:35990 Ending client thread.
2020-06-03 09:50:35.120445 [DEBUG] mod_verto.c:2054 192.168.1.5:35990 Thread ended

Please help with what we have done wrong

Mettavihari