Попробуйте вот такое решение
git config --global http.postBuffer 524288000
Maximum size in bytes of the buffer used by smart HTTP transports when POSTing data to the remote system.
For requests larger than this buffer size, HTTP/1.1 and Transfer-Encoding: chunked is used to avoid creating a massive pack file locally. Default is 1 MiB, which is sufficient for most requests.
взято отсюда
stackoverflow.com/questions/6842687/the-remote-end... 
