But that's incoming(accept) connection blocked and also from ISP:DNS, in fact it seems pretty common with any internet facing app I use....
for example logs are full of following entries:
ACCESS,2010/02/01,17:42:30 +5:30 GMT,avast! antivirus Update was blocked from accepting a connection from the Internet (ISP:DNS).,N/A,N/A
ACCESS,2010/02/01,22:41:24 +5:30 GMT,Opera Internet Browser was blocked from accepting a connection from the Internet (ISP:DNS).,N/A,N/A
and those app's runs perfectly...