ESP8266 Community Forum

I am working on a project where i have to transmit the sensor data through esp8266(wifi module) and go in hibernation for specified time. When the code runs for 1st time I am getting the values and controller goes in the hibernation. But when it comes out of hibernation it does not transmit and displays link is not valid. It also re-initiates the program instead of continuing with the flow. I don't want to re-initiate and my data should go through esp after coming out from hibernation.
Does anyone have any solution?

thank you in advance