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Situation 3: 3G/4G modem is identified, but there is no internet access through the TP-Link router.
Before sharing the broadband with our 3G router, please make sure you do have Internet access with the 3G
modem on PC/Laptop directly.
Now we assume that your 3G modem can be identified successfully by the 3G router, as you can see the following
picture. Here we take Huawei EC169 as an example.
If you cannot have Internet via the 3G router, it may be caused by following issues.
(1) No SIM or incorrect SIM
It is necessary for you to have a suited SIM and 3G modem, and please make sure that you have installed your SIM
into the 3G modem correctly.
(2) PIN Verification
Some SIM cards need to validate the PIN number by factory default. If so, please plug the 3G modem into your PC
directly, and then disable this function in the bundled 3G modem utility. Here we take two models as example.