GL-MT300N-V2 No cellular connexion when using compatible modem

[Hanna]

Hi,
I want to connect cellular 3G/4G modem to mango mini router.
I first tried with a random USB modem and I got only tethering mode working, no cellular. I can access Internet but this is not good enought because the router IP address is a private one and I need to have public IP address.

Then I found on gl-inet documentation this list that reveals some compatible USB modems. Cellular - GL.iNet Router Docs 4
I therefore bought a new USB modem from the list : Huawei E3276
But unfortunately, cellular connexion is still not working. Only Tethering mode works.
On web interface it's still said : "No Modem device found. Plug in your USB modem to start."

Note : The GL inet list precises some models with only tethering working : "*Host-less: This modem supports tethering mode, please set up by using Tethering but not 3G/4G modem."
So it looks this is a regular issue on routers.

Note : I've rebooted the router many times

Would you have any recommendation that can help ?
Thank you !!
Hanna

[bruce]

@Hanna

Huawei E3276

It looks like the USB dongle has a sub-model.
Is the model's name E3276-XX (Not 'E3276')?

Not all dongle supports Cellular, it is depending on the work mode of dongle, such as your screenshot, it dialed / connect auto by itself, and then LAN DHCP allocates IP to GL router.

Works in Tethering mode, as long as there is no issue with the internet, that is good job.