git clone over HTTPs timeout

I'm using git clone over HTTPs

git clone https://github.com/BoltsFramework/Bolts-iOS.git

and get this

Failed connect to github.com:443; Operation timed out

The problem is it fails 9 of out 10 times. VERY UNPREDICTABLE. I updated to use homebrew git version 2.0.1 and openssl seems up to date

OpenSSL 0.9.8za 5 Jun 2014 built on: Aug 10 2014 platform: darwin64-x86_64-llvm

I have these in my .gitconfig file

[credential]    helper = osxkeychain[http]    sslVerify = false    postBuffer = 524288000[https]    sslVerify = false    postBuffer = 524288000

But the problem still exists. This leads to problem like this Attempt to read non existent folder

How to fix this ?