Did you find the fix for this issue? I’m having the same/similar issue. The ESP connects to my router, gets an IP address, I can ping the ESP IP address from another computer however my device shows offline in the app. If I connect to my iphone hotspot it works every time. Periodically it works on the router (after router reboot) okay but then stops working. The router is a Netgear with stock code, ive also tried on another netgear router with WWDRT, same issue. I’ve tried another ESP, same issue.
Any suggestions?
Thanks,