the point when the server crashes

Almost every evening I'm on the game, I get these brief crashes on Zodiark, although I can get back on the game (and rejoin the fc on the chatbox), there is point where I'm in a fate battle and taking control of whats there, the next minute, either nothings there or my characters knocked out on the ground. :mad:

This always happens between 7-8pm GMT, and I have a feeling players are parading onto the server at the same time.

Does this happen on other servers, or is it just me?