Backup USB LTE connection - advise needed

[bruce]

Hi,

@Feos

A HUAWEI E3372h-320 or ZTE MF79? I read about conflicting IP ranges (192.168.8.0) and double nat regarding the E3372h and some required flashing to a E3372s firmware. Its unclear wether this is still an issue or not.

Regarding which one USB dongle to available to use, there are too many models on the market, impossible to confirm whether all are available.

Here list dongles that we tested, but some dongles will have '-sub model', which cannot guarantee that we have fully tested.
ZTE MF79U
ZTE MF833U1
HUAWEI E3372-607
HUAWEI K5161H
HUAWEI E3372-902
and QUECTEL modem with USB adapter...

@Feos

A HUAWEI E3372h-320 or ZTE MF79? I read about conflicting IP ranges (192.168.8.0) and double nat regarding the E3372h and some required flashing to a E3372s firmware. Its unclear wether this is still an issue or not.

Can change the LAN IP range of the GL router if conflict with dongle.

@Feos

I am afraid, that i need to do manual steps if the power is interrupted and i need to fiddle with (re)enabling settings after a reboot (both on my router and the phone). Also since i lack of knowledge here i may waste a lot of time with no positiv outcome and then have to use I. (E3372/others) anyway ?

Probably it requires to manually re-enable the tethering, as after the ios/android re-enable the network sharing, need to click accept or enable button in your phone.

@Feos

Additional old hardware available is a blackberry bold 9700. I guess this is too old and i read there is a software and bluetooth and manual steps each time involved. So my conclusion is that this is a no go.

This phone probably is too old to unavailable to support tethering.

@Feos

Anything else you could recommend to achieve my goal (and hardware thats available in germany)?

Seems as your situation probably the USB dongle is better solution. GL would not recommend anyone brand dongle models. Just purchase what you like, and more patience to try.