So, when we connect to localhost using android
we use

it works like a charm on 4 rc
and i suddenly get http 400 bad request on rtm
i assume its related with iis express

so how to fix…

Search for something like this

add new binding


stop site iis express,
run again
you will see 2 sites’s binding point to your web site

Now from android, connect to

keep in mind the ip address and port number is depend on your own machine

it works!