FWIW, on my rig, its been pretty rock solid(running Eucon 3.5). When I did have connection issues, it was my cheapo wifi router. Once I replaced it with a dual-band 5G router, its been great. Sometimes I need to restart Eucon if the iPad blanks out(when I forget to set that to NEVER), or if I turn on the iPad after a session is open.
Last detail that might be worth a look; I have the iPad set to use a Static IP