We currently have several TRB500s in use at construction sites in Germany. With the TRB500, the LTE connection (Deutsche Telekom) breaks down completely every few days. The LTE router does not reconnect and thus the site is offline until the TRB500 is de-energized, then everything runs normally again for a few hours/days. Unfortunately it is not possible to update the modem firmware, this is set to “Beta”. Firmware of the TRB500 is TRB5_R_00.07.04.5. Modem firmware is RG501QEUAAR12A05M4G_OCPU_BETA_20211020D_04.001.00.000.
In addition, a 5G connection is almost never established, although it is available at the sites (with other 5G routers as well as mobile phones it works without problems at the sites with 5G).
Is there any way to get the modem firmware and update it manually, maybe this would solve the problem? Otherwise we will have to reclaim and return all TRB500s as they are thus ALL not working flawlessly. The sites are in different locations and therefore each is logged into different radio cells.
A cheap ZTE router has worked so far at the sites without failures.
A complex analysis with log files, etc. we are not willing, as long as here is not the latest firmware anwendung, because we are not beta testers, but the TRB500 cost a lot of money and should simply fulfill your task.