Solution : svn: OPTIONS of 'http://yyy.org/yy ': could not connect to server (http://yyy.org)

change the following in  ~/..subversion/servers
towards the end under [global]
uncomment and update your proxy
Note: Remove the # and space at start , else svn will complain every time when you check out  :(

=============================================
ex.

[global]

# http-proxy-exceptions = *.exception.com, www.internal-site.org
http-proxy-host = localhost
http-proxy-port = 3128# http-proxy-username = defaultusername
# http-proxy-password = defaultpassword
# http-compression = no