Unstable connection

Hello, I have just noticed that my devices are under very unstable connection like screenshot.jpg file.

My devices(NodeMCU boards) are at different city. but they suffer the same problem.
So I guess, Blynk server goes something wrong.

What is happening to my Blynk service?

Most likely the issue is with the code you’re running on your devices, or the local network/internet connection.

Maybe if you posted your code it would help.