Users regularly purchase the 7 port powered USB hubs from our store for the purposes of connecting multiple devices at once and in some cases, only a few devices are visible in the devices grid. Because these Hubs are Active (that is, they require an external power source to function properly), users are unaware that they must connect both the USB connection and the AC Adapter. Failure to do so means that the Hub is unable to provide enough electrical current for more than just a few devices. Each device requires approximately 250 milliamps (mA) to be available via the USB connection.
If you have connected several devices but find that only 2 or 3 are visible, make sure that you have connected the Hub to a working electrical outlet and that the power connector is also properly connected to the Hub itself. In almost all cases, this will resolve the issue you are having.
If you need any further assistance, please go to our support portal at https://help.theactigraph.com/home. From here, you can view many helpful FAQ's and Troubleshooting Articles; log in to check any existing Support Requests; or create a new Support Ticket if you are unable to find a solution. You can also email us at firstname.lastname@example.org or give us a call at (877) 497-6996, Monday through Friday, 8 am to 5 pm CST.