Why was I banned?

[EasyK]

So, all is good and I have found the ECGN servers for BF2 to be very good.
I'm having a good time and all of a sudden I'm banned.
I know that I got to the jet first, but WTF?
9:48 CT on 69.31.96.23
Can I get an explanation?
The login said excessive TK or banned by an Admin. This timing was odd and I don't think the TK was out of the ordinary.