Starting today, everytime i try to download V5.8 database from the website at this link: http://download.comodo.com/av/updates58/sigs/bases/bases.cav?track=6137&key5sk1=fb9189bf67b168745f8d575a239290186458a254 I get a “Welcome to nginx!” message instead of the download starting.
It happens with every browser, and every computer I have (I’ve 3). I also changed the ISP, but it did not solve the problem.
Furthermore, contacting friends in Facebook, they told me they have the same problem.
Please note it’s not just you 
There seems to be a problem with the all downloads including the latest version which was released yesterday.
Dennis
Posted earlier today:
Yesterday it started to work again, but today there is the same issue: instead to downloading the database it opens a web page with “Welcome to nginx!” message.