I am looking for a simple tool that I can monitor available bandwidth on my 3 different ISPs in real time. Not what is being used, but what is available...like a speed test, but one that can show historical data. I have PRTG but that shows what is being used. I also do not want it to constant speed tests, that would take up everything I have. I know I could just as easily do a spreadsheet and fill it in. Anyone maybe have a Powershell script that would do this, do a speed test and then fill in results on a spreadsheet?