I found new cloned device in my network

[REDACTED]

Hi,

I found that 4 days ago new device has been added to my network, which I didn't add and is waiting for activation.
It has the same name as one of devices in the network with warning that device is clone.

Is that something that Avast did, or somebody unouthorised did that?

[REDACTED]

I think i remember seeing something like this before on a PC that had a system restore performed.  My advice would be to check out the PC Avast thinks is cloned; there might be a real problem with it.