Ah I see, that was an issue a while back but was not limited to SIP and RTP traffic but all kinds of IP traffic.  That issue was why the 18.211.0.1 was released back then.  I also had issues with that firmware build a few months ago but that was purely over the AutoVPN tunnel, not straight to the internet. ... View more

Did you connect the PC or do a "ifconfig /renew" directly after starting the capture? If yes, draw a picture with all ports from PC to MX and show the screenshot of the corresponding port-configs. ... View more