Hi, I have a RB493G running v5.6. I have configured it with ether1 for WAN and 3 LANs (wlan1, ether2-5, ether6-9). Masqurade NAT with some simple firewall rules from the wiki. It works well. Now I try to connect to a SIP server, sipgate.de (all nat helpers are enabled including sip) from a client on...