Huawei E372 - proper settings

[janptak]

Hi,
I would like to ask whats the correct settings to set-up E372 modem in Gargoyle/openwrt.
I am using an custom build compilation with USB and modems support which is maintained by forum user "Cezar" form pagehttp://eko.one.pl. He is very helpfull person and shared many plugins. tutorials and scripts for gargoyle (his FTP GUI, 3gInfo to provide 3g connection info on separate webpage, SMS maintance through gui, etc)
Ok, striaght to the point.
Previously I was using Huawei E1750 and it runs great.

Huawei E372 appears as device 12d1:1446 . In my file:

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etc/usb_modemswitch.d/12d1:1446

there is added 1506 to TargetProductList line.

For now Ive manually issue

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echo "12d1 1506" > /sys/bus/usb-serial/drivers/option1/new_id

which allows me to start connection manually by issuing

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ifup wan

Ive also put abovementioned line into rc.local to make it automatic.

I am encounering strange behaviour though. Every few days modem stops blinking blue led (which represent active connection) and start blinking green led (which represent registered to 2G, but not connected), BUT I have internet, everything runs great etc. So modem show it is disconnected but there is active connection.
I wonder its a problem with modem itself or maybe modemswith isnt properly modified or else?

Is 1506 in TargetProductList line In etc/usb_modemswitch.d/12d1:1446 an correct value or it should be newer number (1506 was added for
Huawei 1820 and Huawei HDSPA+ modems - E372 is HDSPA+ DC modem)

[ispyisail]

The OpenWRT forum might give you a better response for this question?