Why I cannot have Internet with an identified 3G Modem?

For TL-MR3220 &TL-MR3420; For TL-MR3020 ;For TL-MR3040

Now we assume that your 3G modem can be identified by the 3G router, then you can see this picture below on the Status page of the 3G router. Here we take Huawei EC169 as an example.

If you can’t have Internet via the 3G router, it may be caused by following issues.

1.   No SIM or incorrect SIM

Before you connect to the 3G network, a suited SIM and 3G modem are both a necessity. Please install your SIM into the 3G modem correctly.

2.   PIN Verification

Some SIM 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.

3.   Mismatched parameters

When we try to connect to the 3G network, some parameters such as Dial number, APN, Username and password are required. It is very important for us to know the correct information. If you see the following red-circled sentence in the system tools -> system log page, that means you need to ask your ISP(who provide you the 3G service) for correct information of above parameters.

After you get the correct information from your ISP, please type them into the “Network->3G” page as below picture shows.

After typing in the correct information, I am successfully connected to the Internet at once.

If there are any further problems, please feel free to contact TP-Link support.