Facing issues while installing tensorflow or any other package behind the proxy :
First try :
Run the command :
pip install --upgrade tensorflow
I would suspect that you might need to set your proxy environment variables on your machine to use your proxy. Try setting the following (assumming your on a Linux or Mac OS):
export HTTP_PROXY=http://user:passwd@xxx.xx.x.xx:80
export HTTPS_PROXY=https://user:passwd@xxx.xx.x.xx:443
You don't necessarily need to set the HTTPS_PROXY
variable but it can't hurt to do so
Then try running without the flags
pip install tensorflow