[breddo]

Hello I wanted to ask a question, I think it is very common. My UT2004 server worked fine until then, I have all ports open on my firewall and modem, also I have my cd key for dedicated servers. My server is standard and uses no mutator, web administration interface is enabled. The problem is that my server at startup works fine even on occasions appears second on the list first, but after a few hours the ping seems unresponsive, appears as n/a. It is down the list and does not respond, only lan. It's strange because it started to happen to me recently and do not understand why it happens. The server is mounted in windows server 2008 32 bit version is 3369. Is there any reason for this?
I want my server to be stable all the time.
The name of my server is METAL-SERVERS UT2004.