Please view the video for Help connecting to the T-Mobile Hotspot.
For Issues with the Hotspot, please see the suggestions below from T-Mobile's website:
Check your Chromebook:
Make sure it is within 15 feet of the hotspot.
Try connecting a different computer or T-Mobile device to the hotspot. We can't support game systems, TVs, or non T-Mobile phones or tablets.
Check that all timeout, power saving, or hibernate features are off.
Test to see if it can successfully connect to other Wi-Fi networks. If not, the problem is not with the hotspot.
Try accessing a different website or app. If they work are expected, the hotspot is not the problem.
Close or disable any programs running in the background and clear the browser cache & history.
Make sure it's connected to the right Wi-Fi network.
If you are still having issues, please call TMobile using the number located on the hotspot.