I want to see which devices and when they have connected to my WLAN network - Is this infomation available anywhere?
Does the Internetbox 2 support log forwarding to and external syslog server?
you do see which device are connected or where even connected on the GUI
You don't see when and how long they were connected. Neither can you block any device (you would need to change the Wifi password)
To get Details like this you should use a custom built dhcp-server or other tools for monitoring.
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