Transmission fails quickly
This article troubleshoots issues related to quick transmission failures
Make sure that the hotspot is properly connected to PC or other device via Wi-Fi or micro USB cable. If connected via micro USB cable, disconnect from both the hotspot and the PC or other device and reconnect.
Signal reception might be poor. Check transmission where signal reception is good.
Restart the hotspot.
Check the hotspot battery level. If battery level is low, charge with AC adapter or with PC via micro USB cable. See Charge the Battery for how to charge.