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Industrial IoT Gateways FAQs 2026-03-12 14:45:46

Common solutions for 4G card dialing errors

Question

Common solutions for 4G card dialing errors

Answer

(1) Check if the 4G card is inserted in the correct orientation.
 
(2) Check if the dial-up network switch is turned on in the gateway configuration interface.
 
(3) Check the hardware: that is, whether the device antenna is connected.
 
(4) Check if the 4G card's geographical location is outside the province. If it is outside the province, the operator will lock the card.
 
(5) Check if the 4G card has been used by other devices. Using it on multiple devices may lead to the card being locked by the operator.
 
(6) Check if the 4G card has network restrictions. If it does, add the target website to the whitelist.
 
(7) Check if the device is powered off when the 4G card is connected. If not, please restart the device.
 
(8) Check the data usage of your 4G SIM card. If the data has been used up, please renew your plan as soon as possible.

Keywords：4G

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