jamz, IP you banned belongs to giant ISP in Moscow. This is dynamic IP address shared between many users, so it's useless to ban it (of course if you don't want to ban whole 12-million city:)
I tried new client downloaded from your website. Actually I used 1.1.0.3, not 1.1.0.4, but even 1.1.0.4 doesn't work.
I tried new client downloaded from your website. Actually I used 1.1.0.3, not 1.1.0.4, but even 1.1.0.4 doesn't work.