Before starting live-streaming it is very important to know your internet speed. When you working at home you know your internet speed and everything works correctly. If you change your location, you may have a problem with broadcasting. The reason may be low internet speed, and you need to change your streaming speed.
At the launch stream on the broadcaster set a standard broadcast rate of 512 Kbs, which you should change depending on your internet speed.
So how do you can measure internet speed? Easy. For example by this service (http://yandex.com/internet/).
Also you can use this service SpeedTest.net
DON'T FORGET: streaming speed set in Facebook/YouTube should be no more than the speed of your Internet Upload speed.
For example if upload speed is 579Kbit/s then you should use speed 512Kbs or less for your stream.