Hi @Lorenzo999 

Thanks for posting in our business forum.

It should not be like this.

How long is your Ethernet cable?

If you connect a 3ft cable with a computer for tests for days, will this behave periodically?

Hi @Lorenzo999 

Thanks for posting in our business forum.

Lorenzo999 wrote

The cable from the Virgin hub to the first switch is about 2 meters long. The cable from the first switch to the second switch is about 10 meters long and the final cable from the second switch to my PC is about 3 meters long. If I connect a second PC to the first switch, then the connection is super stable, it never stops. This is why it looks like if the first switch is only connected to the second switch, for some reasons from time to time it stops working, it is like is going on sleep or somehow does not work properly anymore. As soon as I reconnect another PC to the first switch then it looks like it resets or does something and everything is back to normal. If I keep the second PC always connected to the first switch (i.e. the first switch is always busy), then everything remains always super stable. Any idea?

There is no sleep mode on a switch. The green mode does not sleep.

I would recommend you focus on the hardware aspects as this is an unmanaged switch. There is basically nothing you can do with the software. Loop and cables. Nothing else.

If you believe it is a hardware issue, RMA with a replacement and you can check it again. If this persists, it is your network environment or other aspects like computer settings.

You can pay attention to the IP settings. If you get an IP address when it loses a connection? Port light.