[FS#1363] QMI does not use correct APN

[LEDE Bugs]

The following task has a new comment added:

FS#1363 - QMI does not use correct APN
User who did this - dchard (dchard)

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Ok, I tested this patch in an outage situation, and I can confirm the modem is not connecting back to the network when this patch is apllied, so this is not a solution.

The trick is that the modem attaches, so if you ping the modem IP from external sources, you will get a reply, but on the router there is no internet and UQMI also repsonds with "Out of call". The annoying part is in this case the wwan interface is still up.

It fixes the APN issue (partially), but creates another (bigger) issue.
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1363#comment4747