[Freeswitch-users] external profile has no audio and drops after 23 sec

Hello guys ... my calls on external profile has no audio and drops after 23 seconds always and gives me ACK_Timeout ... i didn't have this problem on last versio i was using but after updating with same configs i encountered with this problem.I have searched over the net and every comments was about ext-sip-ip and ext-rtp-ip in external profile.Also playback is not working too i mean there is no sound when playing wav file.I'm not a network or administrator and really need your help.i'm providing my last call log here.PLEASE Help! this is my last call log:https://pastebin.com/gqNMkbHt Best Regards