# 3.4 Mobile Modem

## MOBILE STATUS <a href="#mobile-status" id="mobile-status"></a>

Access the router, go to `Network` > `Interfaces`. You can find the `Mobile` interface, which corresponds to the cellular modem. Once you boot up the EZR24 router, the mobile interface automatically connects to mobile networks.

After successfully setting up a mobile internet connection, you can find the below information on the status of both `Mobile`  interfaces.

* **Rx/Tx** indicates the real-time data stream but not the internet speed rate.
* **IPv4** Address is the IP address obtained from the mobile carrier.

&#x20;

You can manually "**Stop**" the Mobile interface to disable the mobile connection. If you need to "**Restart**" the mobile modem, suggest **Unplugging the DC power adapter** to force the cellular modem to run a fresh restart.&#x20;

![EZR24 Router - Mobile Modem Status](https://2031239798-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FXrJBTozkgaqqeDtauCDH%2Fuploads%2FQjUb8HJ95eHzfguTlJ53%2F4G-Router-Mobile-Modem-Interface-Status.png?alt=media\&token=3389775f-ad7b-4dd4-b7b4-d5ded2a36083)

## APN SETTINGS <a href="#apn-settings" id="apn-settings"></a>

**APN**, short for Access Point Name, is the gateway to access the mobile network. In general conditions, the EZR24 router can use the default APN parameters prebuilt in the cellular modem to set up a connection.

Some mobile carriers or data plans use different APN addresses. Please check the correct APN address with the SIM card provider. You can follow the below guide to set up APN parameters.&#x20;

1. Access the router, go to `Network` > `Interface`. Click the `Edit` button on the row of `Mobile`.<br>
2. In the tab `General Setup` \
   \
   `Protocol`: Keep the default `Mobile Data` unless you need to switch to [`4G-PPP`](https://ezr24.outdoorrouter.xyz/manual/3-firmware/3.4-mobile-modem/mobile-protocols)\
   `Modem device`: Use the default `/sys/devices/platform/1e1c0000.xhci/usb2/2-1` \
   \
   \&#xNAN;**`APN`**: Input the mobile carrier's APN gateway address\
   `PIN`: PIN code of SIM card *\*Usually non-required.*\
   `PAP/CHAP`` `**`username`**: The username of the APN gateway\
   `PAP/CHAP`` `**`password`**: The password of the APN gateway\
   `Authentication Type`: The authentication type. *\*Usually use PAP.*\
   `IP connection Type`: Leave it as "-- Please choose --"*.*\
   `Forbid Roaming`: Enable the checkbox if you need to stop roaming.\
   `Gateway metric`: Leave it as "3"*.*<br>
3. Click `Save & Apply` button on the bottom right corner to apply the new APN parameters. <br>
4. Back to `Network` > `Interfaces`, wait 1-2 minutes until the mobile modem reconnects to the mobile network, and then check the updated status of the mobile interface.&#x20;

![](https://2031239798-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FXrJBTozkgaqqeDtauCDH%2Fuploads%2FHDKjvylU3TLTmcR4etKE%2F4G-Router-Mobile-Modem-Interface-General-Setup-APN.png?alt=media\&token=c9ac5d91-97ac-473a-8631-d9f296ac3f02)

### Example of APN Parameters

Below are examples of APN parameters. Contact the mobile provider to acquire your data plan's APN parameters.

{% tabs %}
{% tab title="United Kingdom" %}
Here are the internet APN settings for some UK mobile phone operators.

<table data-header-hidden><thead><tr><th width="166">Carrier</th><th>APN Gateway</th><th width="122">Username</th><th width="118">Password</th><th>Authentication</th></tr></thead><tbody><tr><td>Carrier</td><td>APN Gateway</td><td>Username</td><td>Password</td><td>Authentication</td></tr><tr><td><strong>GiffGaff</strong></td><td>giffgaff.com</td><td>giffgaff</td><td>password</td><td>PAP</td></tr><tr><td><strong>O2</strong></td><td>o2.co.uk</td><td>o2web</td><td>password</td><td>PAP</td></tr><tr><td><strong>Tesco Mobile</strong></td><td>prepay.tesco-mobile.com</td><td>tescowap</td><td>password</td><td>PAP</td></tr><tr><td><strong>3 Three</strong></td><td>three.co.uk</td><td>&#x3C;Not set></td><td>&#x3C;Not set></td><td>PAP</td></tr><tr><td><strong>Virgin</strong></td><td>goto.virginmobile.uk</td><td>user</td><td>&#x3C;Not set></td><td>PAP</td></tr><tr><td><strong>EE</strong></td><td>everywhere</td><td>eesecure</td><td>secure</td><td>PAP</td></tr><tr><td><strong>Vodafone</strong></td><td>internet (or) wap.vodafone.co.uk</td><td>wap</td><td>wap</td><td>PAP</td></tr></tbody></table>

{% hint style="info" %}
When used in some remote areas or using virtual carriers, for example, **Vodafone** and **EE,** SIM cards might require to use the [`PPP`](https://ezr24.outdoorrouter.xyz/manual/3-firmware/3.4-mobile-modem/mobile-protocols) protocol.&#x20;
{% endhint %}

{% endtab %}

{% tab title="United States" %}
Here are the internet APN settings for some of the USA mobile phone operators.

| Carrier       | APN Gateway         | Username   | Password   | Authentication |
| ------------- | ------------------- | ---------- | ---------- | -------------- |
| **AT\&T**     | broadband           | \<Not set> | \<Not set> | PAP            |
| **T-Mobile**  | fast.t-mobile.com   | \<Not set> | \<Not set> | PAP            |
| **Sprint**    | cinet.spcs          | \<Not set> | \<Not set> | PAP            |
| **Verizon**   | vzwinternet         | \<Not set> | \<Not set> | PAP            |
| **Twilio**    | wireless.twilio.com | \<Not set> | \<Not set> | PAP            |
| {% endtab %}  |                     |            |            |                |
| {% endtabs %} |                     |            |            |                |

{% content-ref url="3.4-mobile-modem/mobile-protocols" %}
[mobile-protocols](https://ezr24.outdoorrouter.xyz/manual/3-firmware/3.4-mobile-modem/mobile-protocols)
{% endcontent-ref %}

{% content-ref url="3.4-mobile-modem/mobile-band-lock" %}
[mobile-band-lock](https://ezr24.outdoorrouter.xyz/manual/3-firmware/3.4-mobile-modem/mobile-band-lock)
{% endcontent-ref %}