Not a lot can be told from these 3 images, but a few things to check
1. Are you sure the cable between your switch and your F48 is OK?
2. You are connecting to a router/switch, not a second NIC on your computer?
3. you did not turn the falcon on and immediately start to access it. It takes up to about 30 seconds or so to boot up
4. is 192.168.1.1 your router/modem? If so then that's OK, if not then what is it?
Question 1, brand new, opened from a packet
Question 2, my main router - has the computer connected to it which accesses the web interface
Question 3, turned on, waited for the ip to show on the small LCD, still shows 192.168.1.130 on the falcon - is a static ip on the falcon - 192.168.1.130, 255.255.255.0, 192.168.1.1 and needs a reboot when it falls off the network to see it again, the LEDs stop mid way and stay lit up at the moment it fell off.
Question 4, yep 192.168.1.1 is the gateway
the web interface was working last night when I went to bed, I left xshedule 64 (latest version) handshaking to the falcon, the web interface photo was taken before bed, this morning I took the 2 photos after refreshing the web interface and a picture of Xshedule 64 reporting the failures
Tried plugging it into the other LAN port on the falcon? You might have a dodgy port, otherwise this looks like something Daryl might need to chime in on