I found this post with also a similiar issue:
“LTE module does not support DHCP so it must be configured via QMI.”
you must change the default value of
“dhcp” option in QMI protocol configuration options from 1 to 0 so the system is using uqmi and not dhcp
How will UQMI handle the assignment of IP address and route? The stick is fine, driver fine, connection working, but the last step is just broken, and it wont get a IPv4 because of some DHCP issue.
Here is a similar issues discussed 9 years ago: [OpenWrt-Devel] Huawei 3372 NCM support on CC not working it was said being fixed in kernel 4.2? how come it doesnt work though.