I am guessing that may be a problem that is local to your environment/network.
I just now ran a quick check and it works fine for me.
Here's the output for your reference.
Resolving selenium-release.storage.googleapis.com... 74.125.200.132, 2404:6800:4003:c00::84
HTTP request sent, awaiting response... 200 OK
Length: 34564662 (33M) [application/java-archive]
Saving to: ‘selenium-server-standalone-2.41.0.jar’
krmahadevan@MyMachine ~/tools/grid2 $ java -jar selenium-server-standalone-2.41.0.jar
Apr 09, 2014 10:29:37 PM org.openqa.grid.selenium.GridLauncher main
INFO: Launching a standalone server
22:29:37.629 INFO - Java: Oracle Corporation 24.45-b08
22:29:37.629 INFO - OS: Mac OS X 10.9.2 x86_64
22:29:37.637 INFO - v2.41.0, with Core v2.41.0. Built from revision 3192d8a
22:29:37.709 INFO - Default driver org.openqa.selenium.ie.InternetExplorerDriver registration is skipped: registration capabilities Capabilities [{platform=WINDOWS, ensureCleanSession=true, browserName=internet explorer, version=}] does not match with current platform: MAC
22:29:37.741 INFO - Version Jetty/5.1.x
22:29:37.742 INFO - Started HttpContext[/selenium-server/driver,/selenium-server/driver]
22:29:37.742 INFO - Started HttpContext[/selenium-server,/selenium-server]
22:29:37.742 INFO - Started HttpContext[/,/]