I have an LTE Sierra MC7403 modem installed on an PC-Engines APU3 (OPNSense),
everything works perfectly except the speed which systematically returns to 5Mbps/5Mbps after reboot.
the only solution to arrive at a transfer rate of 45Mbps/40Mbps and to reset the modem with the command AT!RESET and reload the point-to-point connection…
How is it that when restarting the APU the modem never works at the right speed??
Thank you in advance for your ideas,
I have just spent several hours in order to find a solution to this problem.