Doesn't work for me at all, started with the web UI not opening (127.0.0.1 refused to connect. Tried with my ip as well, didn't work), thought maybe I should try setting up switch first, nope, the DNS is incorrect it says on switch.
127.0.0.1 is LOCALHOST - ie: it is the machine you are running it on, it will never talk to any other networked devices.
so the app / web UI cannot see your NIC (network interface connector ) on the PC. If you look in control panel / network / change adapter settings - is there an entry for LOCAL AREA CONNECTION? There may be many (especially with VPN etc. software installed) you're looking for one which will have some info about the chipset - most common is Realtek. eg: mine is Realtek PCIe GBe Family Computer.
If you click on it it should open the Local Area Connection Status window, select DETAILS at top half of window - it should have info like this:
Connection-specific DNS Suffix: home
Description: Realtek PCIe GBE Family Controller
Physical Address: E0-D5-5E-xx-yy-zz
DHCP Enabled: Yes
IPv4 Address: 192.168.1.3
IPv4 Subnet Mask: 255.255.255.0
Lease Obtained: Wednesday, 12 December 2018 10:52:51 PM
Lease Expires: Monday, 24 December 2018 10:52:55 AM
IPv4 Default Gateway: 192.168.1.1
IPv4 DHCP Server: 192.168.1.1
IPv4 DNS Server: 8.8.8.8
IPv4 WINS Server:
NetBIOS over Tcpip Enabled: Yes
IPv6 Address: fd30:7496:3ab3:4f00:787c:a855:4e1d:cca2
Temporary IPv6 Address: fd30:7496:3ab3:4f00:901a:1d12:2563:1669
Link-local IPv6 Address: fe80::787c:a855:4e1d:cca2%23
IPv6 Default Gateway:
IPv6 DNS Server: fe80::1%23
xx-yy-zz are not valid numbers in the Physical address, I removed them, just in case of security issues.
you should be able to see the IPv4 address for your NIC and also from memory the physical address needs to be entered into Xlink KAI (been a while since I set it up).