Hi to all,
We have a strange behavior on an antenna model OTD140, updated to the latest firmware version OTD140_R_00.07.07.1. The upload and download speeds are very low and often asymmetric, like 15 Mb/s download and 26 Mb/s upload. Another strange thing is that the same SIM, an LTE Primary SIM, when placed in an iPhone SE2020 (so only 4G), the upload and download performance is three times better, i.e., 70 Mb/s in upload and download.
It’s possible that the device is damaged or faulty. Additionally, it has internal antennas that could be detached (Device disassembly will be needed to check that). Please take a screenshot of Status → Network → Mobile to check your signal reading.