GL-iNET B1300 / 19.07.3 and E3372


So I got a Huawei E3372 USB modem, to add as a backup WWAN connection.
I am using tracfone/US, I installed a bunch of packages using the instructions on

added this section...

config interface 'wwan'
	option proto 'ncm'
	option ifname 'wwan0'
	option device '/dev/cdc-wdm0'
	option apn 'wap.tracfone'
	option mode 'preferlte'
	option delay '5'
	option service 'preferlte'
	option ipv6 'auto'
	option pdptype 'IPV4V6'

Its DEAD.. any hints...