I remember while working at some company, I started using a local flask server. For some reason, I remember one company router kept making http request on port

I remember while working at some company, I started using a local flask server. For some reason, I remember one company router kept making http request on port 5000 or 8000, can't remember which port, because it was literally showing on the terminal, with the http path, at random times. I'm sure being a hacker must be pretty fun these days.