HTTP / HTTPS traffic does not pass the proxy

Question

Hello everyone, I have the problem that traffic from two applications does not pass the proxy. The proxy runs in transparent mode without authentication. The proxy is configured for HTTP / HTTPS. The traffic is not visible in the proxy log, the traffic appears directly in the firewall log and is blocked here. 
 
 Services etc. have already been re-started. Does anyone else have an idea? greetings Kevin

sachingurung · Accepted Answer

Hi Kevin, 
 Check in the packetfiler.log which provide more details about the drop. Alongside, capture http.log for the source and destination IP to check if it is dropped due to any inside filter. 
 Thanks

rfcat_vk · Answer

I think there is a misunderstanding, that traffic you are seeing blocked is because the UTM does not see those packets as part of the current connection/session. You only seeing sync packets being dropped not the actual connection through the http proxy.

Lightflasher · Answer

Thanks sachingurung, rfcat_vk and BAlfson, 
 I checked all settings again and found the problem. There was I match in the transparent-mode-skip-list the encountered this error. After I remove the IP-Range to skip from Akamai AS the applications are working without an error. 
 Thanks.