How to check internet bandwidth

I have freezing when watching channels.How can i check if my internet connection is sufficient?

Step-by-step guide

Hi,

When connected to the same line as your zaaptv device ,please provide us the download rate (MBs/sec or KBs/sec) or the total download time when you click this http://wpc.a310.edgecastcdn.net/00A310/test/test.dat :
You can use these guides to find this information depending on your browser :
Internet explorer http://www.sevenforums.com/tutorials/119493-internet-explorer-download-speed-time.html
Mozila Firefox https://support.cdn.mozilla.net/media/uploads/images/2013-04-04-17-21-12-c5b137.png
Chrome http://googlechrometutorial.com/google-chrome-general-settings/Google-Chrome-Downloads.html
Opera http://i.stack.imgur.com/WkIHK.png
Please note we need to know the transfer rate or how long time it takes for this download to be completed,which you can only check when the download is in process.