Thanks for your previous help! I’ve got my new Imp blinked up and its connected to the wifi network, but I’m stuck in a loop of it trying to connect, several slow green flashes, followed by being disconnected, fast red flashes.
I’ve taken a tcpdump on the outbound port of my firewall, (pfsense 2.0.2), and I can see it connecting, transferring some data and disconnecting. Unfortunately I can’t decode the data, I assume its TLS encoded. Looking at this Thread, I don’t think I’m seeing the >576 MSS issue. Incoming data lengths never seem to exceed 576 bytes.
It seems that every other connection request to the cloud results in a RST after the SYN, SYN/ACK. But then the next one goes through smoothly. I’ve attached the pcap file (imp.pcap.zip). The trace is short, but I can grab another one from startup for however you you need.
Network Config is Linksys E1000 Wi-Fi access point -> Gigabit Switch -> Mini PC running pfsense 2.0.2 Firewall -> 100Mbit Fiber ISP