Camera app does not work on mobile internet

First, open the same camera channel with the same account using the local Wi-Fi network. Then, switch to mobile internet on the phone and repeat the test. Check whether other internet functions on the phone are working at that time. Note the exact message; no internet on the phone is nothing different from just an unreachable recorder.

A device that has been added with a local network address is therefore not automatically accessible from outside the network. Verify whether the system uses a supported account or external connection method. Do not remove the working local connection until it is clear how it is configured. The required approach depends on the manufacturer and existing installation.

Check if the phone allows mobile data for the camera app and if a VPN or network filter is affecting it. Change one setting at a time and restore a test change when it doesn't clarify anything. If possible, compare with a second authorized device. This will help determine whether the problem is related to a single phone.

Check locally whether the system has internet access and what the status of the configured external service is. Include a recent router or provider change in the investigation. Do not open various router ports by chance; let the used method and necessary settings be assessed. A local recording can continue to work in the meantime, so check it separately.

After recovery, view live movement and search for a recent fragment via mobile internet. Check the required features, such as notifications or access by a second user. Record which route is now being used. This way, after a next phone or router switch, it will no longer be unclear how watching from outside should work.