Rsync help

[spjeff69]

I created a cron job that says this:

rsync -avz boinc.rieselsieve.com::boinc .

I get an error that says this:

rsync: failed to connect to boinc.rieselsieve.com: Connection timed out (110)
rsync error: error in socket IO (code 10) at clientserver.c(107) [receiver=2.6.8]

I can connect to the site fine though, and the owner of that site has set up the same rsync command on another box, and it works fine.

Any help?