Problem looks like an http error, network interruptions, maybe you're using a proxy, vpn, or similar?

Also, are you using the latest version of git?

if the problem persists, you could try to increase the number of bytes Git will buffer

git config --global http.bufferSize 524288000

and increase limits

git config --global http.lowSpeedLimit 1000
git config --global http.lowSpeedTime 600