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Hi.

I have been unable to connect to internet mobile service using the TL-MR3420 and an unlocked ZTE MF821 modem.
The router identifies the modem, however the connection has not been possible using manual APN settings, which work connecting the modem directly on the PC.
I tried the manual route since Colombia is not listed in the Region + Provider page.

Any help troubleshooting the problem is greatly appreciated.