DWR-921 c1 4g connected but no internet

Installing and Using OpenWrt Network and Wireless Configuration
1

Hi!

I'm using latest OpenWRT on a DWR-921 C1 , trying to browse the web with the 4g modem with an italian WindTre SIM.

Some info:

  1. The sim has no PIN, has credit and works properly both in the provider supplied portable router (TCL MW40v) and in any Android phone I put it into; to me this seems to mean the SIM is ok...

  2. In the DWR, the sim gets recognized, and if I set the wwan connection to QMI, setting apn to internet.wind and protocol to PAP with no username and no password (which are the configs the provider supplied portable router uses and they work in it), the modem connects to the network

  3. The wwan interface gets a daughter interface wwan_4 which correctly gets an ipV4 address like 10.10.190.xx (but not a dns address, is this normal?), but then...

Pinging any address does not work, neither the gateway ip nor any known ip address such as 8.8.8.8 (which normally responds to ping).
Traceroute does nothing, nslookup does nothing, event when I manually set DNSs to opendns ones...

Any advice on what I might be doing wrong?

Thanks to everybody!

2

Hi

What do you get if you run:
uqmi -d /dev/cdc-wdm0 --get-current-settings
and
ubus call network.interface.wwan status or ubus call network.interface.wwan_4 status
?

3 
uqmi -d /dev/cdc-wdm0 --get-current-settings

{
        "pdp-type": "ipv4",
        "ip-family": "ipv4",
        "mtu": 1500,
        "ipv4": {
                "ip": "10.0.212.243",
                "gateway": "10.0.212.244",
                "subnet": "255.255.255.248"
        },
        "ipv6": {

        },
        "domain-names": {

        }
}

ubus call network.interface.wwan status

Command failed: Not found

ubus call network.interface.wwan_4 status

Command failed: Not found
4

Strange that your provider not include the DNSs.
This is from my DWR-921 c3.

root@OpenWrt:~# uqmi -d /dev/cdc-wdm0 --get-current-settings
{
        "pdp-type": "ipv4",
        "ip-family": "ipv4",
        "mtu": 1500,
        "ipv4": {
                "ip": "10.3.224.91",
                "dns1": "8.8.8.8",
                "dns2": "8.8.4.4",
                "gateway": "10.3.224.92",
                "subnet": "255.255.255.248"
        },
        "ipv6": {

        },
        "domain-names": {

        }
}

Is the DNSs added manually in the TCL MW40v?

Is not ubus installed in your router?