All my connections have dropped

This doesn’t seem possible, but I had about 8 instances of WLED running, and each was accessible through the various apps, I tend to use the iPad version. However, all the connections just dropped. Unplugging always seemed to work - this had happened before. Now though, it’s just a miscommunication issue. I can ‘find’ by name or IP on one of my devices, but not another. Since this seems to stem from the idea of a ‘local network’ I’m poking around there but playing with the router doesn’t seem to work. One app on the phone finds the device, another does not. IPs work in one instance, not another. Any ideas on how to triage? All seems to work on the programming, this is only the web interface that is misbehaving. I am not certain how to debug since most aren’t connected physically but willing to give it a try!