Try looking off to the side of the computer desk
in razor need to set it to your ip you need to use, then it will be on the list after that - if from same machine use 127.0.0.1
if on same lane as server, then the server's lan IP
if form not on the lan, the server external ip address (as posted in serverlist.cs file)
for CUO - go into tool, options, 2nd page and change the "style" to blueblack or the other one - the one it defaults to causes the crash
also chjeck to use razor or not in there also
then close it all down and restart - no more crash
then have to set up a local server for your server in there