My Server randomly stopped appearing in the Master Server

[esnesi]

Not sure why that is not set to DO_KickBanPlayer by default on 469.
Only this won't help the server getting online

[FlackCannonCanyon]

As far as i can see, your server should be shown in the list.
Have you tried removing the firewall entries, and re-adding them for ucc.exe and unrealtournament.exe ? (Windows sometimes does the strangest things when paths/folders gets changed)
Do you maybe got any other AntiVirus/Firewall active that could be blocking the traffic of UT ?
If so, verify the exclusions/exceptions in there as well.

One good advise: change your admin password as soon your server is online.

Okay I will update a bit later when I do that.. Also the admin stuff was all made up for this so its fine

[esnesi]

Okay I will update a bit later when I do that.. Also the admin stuff was all made up for this so its fine

Let us know when you find the cause.

[Gustavo6046]

Maybe here is missing a bit of security, [...]

If it's the default settings I don't blame the guy, I had never even heard of these options until right now.

But yeah, it would be nice to set this, maybe with a low interval to prevent false positives.