I am using RAK7258LTE and found annoying problem with it.
The problem is related to the settings of the LTE module (it is impossible to establish a connection with a known good AT&T SIM card tested on other equipment).
In fact, it looks like the module is working. From the gateway interface, I see that there is an exchange of packets. In fact, this is not the transmitted / received packets, but the exchange of the gateway with the LTE module.
I would like to understand what exactly is wrong and where to look for the problem. On the Quectel forum, I found several references with similar problems (they are the same for EC25, EC21, EC20R2.0, EG91, EG95, EG06, EP06, EM06, BG96 modules) For example:
In all cases, Quectel Support recommends using (and provides on their website) the latest drivers.
But here we are faced with the problem of a “commercial gateway”.
It is impossible to install additional packages or update from the developer’s repository by standard means.
It seems to me that the gateway developers could create a driver repository so that users can perform driver updates without affecting the “commercial” OpenWRT (!) System as a whole.
But this is from the area of wishes, while the problem continues.
Out tcpdump for eth0 and wwan0:
looks like wwan didn’t get IP-address…
Has anyone been able to fix this issue on RAK7258LTE?