Shorter guide https://medium.com/@ophirharpaz/kdnet-tutorial-for-noobs-68669778bbd4
Create new boot entry (with debugging enabled)
bcdedit /copy {current} /d "KDNet port 50000"
# Enter GUID based on previous output
bcdedit /default {dd896c2e-fccb-11e8-9cb7-d481d7c30c24}
bcdedit /set {default} debug yes
Then enable debugging
bcdedit /debug on
bcdedit /dbgsettings net hostip:<host_ip> port:50000 key:1.2.3.4
bcdedit /debug on
bcdedit /dbgsettings serial baudrate:115200 debugport:1