# 4.4 Traversal Cloud

After enabling the **Traversal Cloud**, you can access and control the 4G routers anytime, anywhere, on a web browser. It offers the easiest way to look over your networks. No public IP address and DDNS configuration are required. **It’s completely free!**

![Working principle of Traversal Cloud](https://2031239798-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LvFmeL2Pv0EF2-7nON9%2F-LxZzYuGbAiN0fLsLmCp%2F-LxZzfF5v0Y8MgiDucms%2Fimage.png?alt=media\&token=e42b2709-07d0-4a37-a14d-2ca98b1f5cde)

## **Web Access** <a href="#web-access" id="web-access"></a>

A web proxy is pre-built in the firmware. The traversal cloud is turned off by default. You can follow the below steps to enable it.

1. Log in to the router, go to `Services` > `Traversal Cloud`.
2. Click the checkbox `Enable`, then click the button `Save & Apply`.
3. Now you can access your router at the `Cloud Address` on a web browser.

{% hint style="info" %}
Recommended to set up a strong router password (go to `System` > `Administration`) before enabling the traversal cloud.
{% endhint %}

## Debug <a href="#debug" id="debug"></a>

If unable to access the cloud address, please check the below factors.

1. Please ensure the traversal cloud has been **enabled**. After enabling the checkbox, please click the `Save & Apply` button.
2. Before accessing the traversal cloud server, the router must have an Internet connection. Please check the Internet connection on the router.
3. If you once turned off the traversal cloud function within a power cycle, please reboot the router to refresh the traversal connection session.