Question: I have set my GAE web app with all the appropriate endpoints and deployed it locally on my ubuntu pc. I get connected to my home network, I found my computer's local IP, selected the correct port (8888 is the default for GAE web apps) tried to connect (from Chrome and my android device) but no luck. I get 

`Google Chrome's connection attempt to 192.168.1.2 was rejected. The website may be down, or your network may not be properly configured.`

`Error code: ERR_CONNECTION_REFUSED`

Where should I look? Is this a GAE, network or Ubuntu issue?

Answer: 
Make sure you set the --address=192.168.1.2 (for java) (--host=192.168.1.2 for python) flag when you startup the app
192.168.1.2 is generally the router address, although it's possible you have set it as your local computer IP.

The --address flag will work as long as you have the correct LAN IP address, in your case, I think you got the wrong one.

If you are on Windows, go to your cmd and type ipconfig. Look for the field IPv4 Address, it should have your local IP address that looks "similar" to 198.128.1.2.

Let me know if that works for you, thanks.