I switched my 4510l to LTE only since it wasn't working properly when set to Global. It seems to prefer 3G signals when it is in this mode. Now my problem is the MiFi will switch to 3G even though signals appear to be strong on 4G. See below.
Channel: 775 P_REV Indicator: 6 PRL ID: 15010 Band Class Type: US PCS (1900MHz) ERI Version: 4 Dormancy: FALSE Signal - EVDO: -77 dBm Signal - 1X: -92 dBm Signal - LTE: -64 dBmSINR - LTE: 29 dB Battery Level: 2 Battery Charging: 0 Ec/Io : -8.00 dB
Currently, the MiFi is on 3G and not switching back to 4G until I reboot it.