I am a bit confused by your request - you want the server to be manually added? The server still will not respond to the query, so it will not show online and would be removed automatically when it continues to be offline. In order for it to stay on the site, I'd need to re-add it repeatedly over the course of the week and it would never show any information about the server besides the game and IP. This is not something I feel is worth the time, unfortunately.

I did just try a locaping traceroute to your server and only Singapore did a complete trace for .18, compared with .19.

Good luck

Happy to see my suggestions were able to help you get .18 back on the site. if you feel the fix to your network could be helpful to others who have the same problem, please feel free to post it here.