Yesterday evening it disconnected after 12 minutes while doing nothing. I have a print running right now, after 20 minutes it was still connected. I have family in town all weekend but I'll try to get a trace uploaded if I have a minute.
Theres a link to it. I still get disconnects but I've been restarting the interface and it stays connected for a while. I'll try to diagnose my network problems, theres probably some random things connected to the 2.4ghz network that are causing problems like with mhackney. I think some of my hassles will be solved when a new firmware is released that either restarts the web interface automatically or is able to reconnect it to the network.
Thanks for that explanation. It's different from what the wired Duet does - but the wired Duet doesn't use the lwip socket interface. I presume I could replace the socket close call by a shutdown call to avoid the reset.
Some of the pictures are still direct links in the wiki, which need to be moved to proper wiki file references. Even then though images are fixed width, I will look to see if I can make media wiki display images responsively.