Technorati pings to fail

I noticed that technorati fails to update my blog, whether my blog pings it automatically or I do it manually. The blog’s access log shows that technorati reached it only when I made a blog claim.
Has anybody experienced something similar, - Dreamhost doesn’t recommend to ping such sites; maybe I missed something and Dreamhost already officially curbs technorati from examinig a blog’s new content? Or, maybe, it’s Typo4.0.3?