I have a problem :o

I am using NodeMCU and Blynk program
and i have manual control and Automatic control
when the internet stop , NodeMCU go offline but the problem NodeMCU NOT responding .

when system go offline I want it continue with automatic control

I'm gonna take a wild guess and say the problem is somewhere in your code. Oh, wait, you didn't post any code .......

I have it next on the todo list of my project. If Blynk can't get connection to the server other functions of the sketch suffer. I suspect that sockets are opened faster then they are freed.