Report Nat / Direct Connection Confusion! in Sync General Discussion Posted February 13, 2014 New thoughts! I was reading a thread: http://forum.bittorrent.com/topic/19214-trouble-with-rotuer/?p=50004 This seems to indicate that if your firewall / router 'renumbers' your outgoing connections (i.e. source port) that things will 'break' and you'll end up needing to connect through relays. IS THIS MY ISSUE? It may be! I can try disabling the renumbering via my Firewall (pfSense 2.x on both ends, in fact) - but this is Kinda A Problem. Lots of business firewalls do this for security, and no protocols that I've seen from the past 10 years have this sort of 'it doesn't work with renumbering' issue! SIP - sure, but SIP is a train wreck. I do think some 'paranoid' configurations of OpenVPN may have similar behavior, but seriously folks! This is not a sane way to handle networking in the year 2014 - you can't count on the outbound port of a client being a certain number! This is also fundamentally incompatible with having multiple clients behind NAT. Please get rid if this limitation, if that is in fact a current limitation.