Thank you for the settings.     Another temporary workaround for ESPCore 2.3 devices is to run your AP in NAT mode.  I switched mine, upgraded to firmware 25.9 and my wireless device is still connecting.   ... View more

Our MR18 has been set to "WPA2 Only" for quite some time.  I tried upgrading the firmware to 25.9 and our TempStick immediately loses connectivity.  Can you list the other settings on your device, such as how frequently it is checking in? ... View more