After disabling 'save on send' you probably want to run E.setBootCode("") to clear out any saved code - the flashing might have done that for you but it's a bit slower.
There errors you're having will be coming from your code - so you'd need to post up an example of what you're doing on the ESP8266 forums. My guess is you might be executing some code in the global scope (eg. not in onInit or a timeout) that expects an internet connection.
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After disabling 'save on send' you probably want to run
E.setBootCode("")
to clear out any saved code - the flashing might have done that for you but it's a bit slower.There errors you're having will be coming from your code - so you'd need to post up an example of what you're doing on the ESP8266 forums. My guess is you might be executing some code in the global scope (eg. not in onInit or a timeout) that expects an internet connection.