If you use Firefox version 52 or later and you have Lenovo/IBM IMM firmware 1.47 and later you'll notice that there is no progress after pressing the Login button in IMM web interface. This the latest flaw in what was once a great browser. The people over at Mozilla think they know what's best and decide to break stuff in the name of 'security'.
Bitcoin has become the most exciting phenomenons of the 21st century thus far. I've been following Bitcoin since early 2010 when they were worth no more than $8. Now (3 years later) a single bitcoin will set you back $1,072 USD. I never bought any bitcoins and now I wish I had.
A problem that you may run into with some poorly designed USB hubs is that the devices attached or plugged into the hub will no longer show up or get recognized in Windows after your system has been rebooted. You try powering it off and on, then unplug it, re-plug, reboot, etc...
Windows may even hang during boot while the USB hub is plugged in.