Telecom IoT card cannot access the Internet

IoT card is a mobile communication access service provided by the three major operators of China Mobile, China Unicom and China Telecom for users with Internet of Things needs. As a carrier of information interaction in the Internet of Things, IoT cards are increasingly used in daily life. Common shared bicycles, mobile POS machines, shared power banks, vending machines, etc. all use IoT cards. Not only that , IoT cards play an important role in smart metering, smart security, smart cities, and smart wear.

In the process of using China Mobile, China Unicom, and Telecom IoT cards, many users will encounter the situation that the inserted device cannot connect to the Internet normally. (Recommended learning: PHP Video Tutorial)

When arrears are excluded, it may generally be that the device cannot recognize the IoT card, the usage environment has poor network coverage, or the device is faulty. The following are common problems and solutions when using IoT cards.

No network, no signal, no service

Replace the device. If the problem persists, it is a problem with the IoT card. Check whether the IoT card is turned on. If it is not turned on, there is no signal or network service. If it is open and cannot be used, you can communicate with the supplier to change the card. If the replaced device can display normally, then there is a problem with the device.

The device cannot connect to the Internet, but it works fine when plugged into a mobile phone.

The device cannot connect to the Internet while in use, but it works fine when plugged into a mobile phone. There may be device incompatibility issues, or the device can only use a specific operator's network, or the device does not support 4G networks.

Both the device and the mobile phone cannot connect to the Internet

You can find the APN settings on the mobile phone, establish a new network access point, and set the parameters to CMMTM (using 2G network )/CMIOT (using 4G network), save the others unchanged and select it as the default access point. Use your mobile phone to visit the website and see if you can access the Internet normally. If you can access the Internet, then the IoT card is normal. If you still cannot access the Internet, there may be a problem with the IoT card. It is recommended to contact the supplier to solve it.

Because the IoT card uses the operator's cellular network, there are signal coverage and device compatibility issues. It is recommended to apply for a test card from the supplier before use to check the specific device compatibility and signal coverage. Test to avoid problems during use that may cause the IoT card to fail to work properly.

The IoT card is mainly aimed at enterprise users with Internet of Things needs. Individual users are advised to purchase with caution. This is because some irregular channel sellers claim to sell high-traffic cards to individual users at low prices, but their actual traffic usage does not reach the advertised traffic.

The level of IoT card suppliers varies. It is recommended to choose a supplier with good service, clear tariffs and after-sales guarantee to avoid problems such as being unable to access the Internet and artificially high traffic during subsequent use.

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