Could be a number of factors, The server load has been high since the christmas sales. My ping is usually about 30 but once the server hits 90 plus users my ping will start to rise steadily as more people join.
Secondly westre has posted that the server has been targeted by attacks from certain groups in the past, seeing as the official server forums were attacked recently and taken out of action perminantly there is a good chance that similar attacks are being attempted toward the server atm, Unfortunaly there are many childish players who dont like being excluded from the server despite being banned for good reason.
I would keep an eye on it and see if it continues. If it does you should try messageing westre here on these forums or the new server forums once they are up and running.
