Communication with repository at http://dist.springsource.com/release/TOOLS/third-party/groovy-grails/e3.7 failed. Read timed out

I reformatted my laptop since I keep getting all sorts of error in springsuite while debugging until such time it does not run my app anymore, it just keeps building the war..anyway, when I tried installing grails or groovy, I keep getting this error:

Problems occurred while performing installation: Communication with repository at http://dist.springsource.com/release/TOOLS/third-party/groovy-grails/e3.7 failed.
Communication with repository at http://dist.springsource.com/release/TOOLS/third-party/groovy-grails/e3.7 failed.
Read timed out

Steps ateempted to solve the issue but did not work:

>I tried installing each one at a different time like groovy first then grails etc but not working.

>I tried every possible link suggested in closed / resolved tickets forum from here:

http://forum.springsource.org/showthread.php?92390-(STS-2-3-3M2-)-The-following-connectors-are-not-available-Grails-Support
http://forum.springsource.org/archive/index.php/t-116108.html?s=0d111031b6fbdb7a22696c1bc6d10e4d
http://forum.springsource.org/archive/index.php/t-100961.html
http://groovy-eclipse-plugin.42567.n3.nabble.com/STS-Grails-Support-missing-td1023633.html

but nothing is solving my problem. still the same error!
>I tried disabling my windows firewall, enable all posible outside network sharing, unblock all possible domains but nothing.

>I tried manually installing the software from sts and made use of the ff links but still the same

http://dist.springsource.com/snapshot/STS/nightly/e3.6/
http://dl.google.com/eclipse/plugin/3.7
http://dist.springsource.com/release/TOOLS/update/e3.7
http://dist.springsource.com/milestone/TOOLS/update/e3.6

now I am about to give up and banging my head, pls do tell me what I should do. I have a lot of tasks and can't get it done without this.