Why do I always get a "forum not available error at 11 pm cst"

[coinbuysell]

Is that the maintenance time? I get it almost every night...I work all day and peruse the forums for a couple of hours before going to bed and get it constantly. Just wondering...

 

[Pokerchip]

I'm here at all hours of the night and I can't remember it being a problem at any certain time. I've only had it happen a few times and I've been lurking for years.

 

[RevDevil]

Probably when the server is doing a back up.