If you want I can test it, tell me how I can do this 
Many thanks jow...
Topic: 3g connection doesn't start at boot
The content of this topic has been archived between 23 Apr 2018 and 1 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.
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usbreset /dev/usb* is probably better and works the same
Seems fixed with r32602 (tested with e220, e270, e353, k4505-z), many many thank!
Now I have the same problem of this guy but is another story...
https://dev.openwrt.org/ticket/11776
The discussion might have continued from here.
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