I've opened the ports, and even tried completely replacing my router, and no help.
I can connect to other subversion accounts (such as my svn account on sourceforge), but when I try to connect to the sharpdevelop subversion, (even to the mirror one) this is what I get:
svn: Can't connect to host 'svnmirror.sharpdevelop.net': A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Is it yet possible that the problem is in the server side? such as ip blocking or something?