Hey There…
Try some of the simple troubleshooting first.
Power Off EMO, and then power cycle your Wi-Fi network. While you are doing this, power off your phone as well. Once your Wi-Fi network is back on, start up your phone, and make sure you are connected and can access the internet by browsing.
Make sure Bluetooth is on and working on your phone as well. (maybe turn it off and on as well).
Once you’ve done all this, try to power on EMO again. Once the EMO is back on, connect back in via the EMO app and attempt to connect to the Wi-Fi network once again.
As you are on a 2.4ghz it should work, unless you are using a very long password. From past discussions, if the password to the Wifi is close to 25-30 characters it could cause a problem as well with EMO dropping off and losing connection. (If this is the case, simply make your password shorter and try again).
Hope this helps.