Problem using an APN with 4G not available

[Aleksander Morgado]

Hey!

> I’ve encountered a similar problem with a Quectel EC25 (and Telit LE910C4-NF) modem where a custom apn was only allowed to connect on LTE as the default EPS bearer. Without changing the default eps bearer apn setting to match the custom apn, the modem fails to register on the network and falls back to 3G.
>
> You might try modifying the APN setting of the default EPS bearer with qmicli wds-modify-profile (usually the first profile) and checking if you can connect to LTE that way.
>

That is actually a very good suggestion, and would make total sense. E.g. try:
$ sudo qmicli -d /dev/cdc-wdm0 -p  --wds-modify-profile="3gpp,1,apn=YOUR.APN"

-- 
Aleksander
https://aleksander.es