Device was disconnected in NodeMCU

Hi blynkers.

In my project, when I initialize my NodeMCU card, in Blynk 1 or 2 times the message “Device was disconnected”, without doing anything, and after a few seconds starts to work normally, my NodeMCU is next to the router, There are no issues with Wi-Fi coverage, so I’d like to know what this may be.

Greetings BlackTiger.