GL-x300b G4 modem does not accept SIM card PIN

Maybe somebody has an idea what I can do. I have the router GL-X300B and put in a SIM card. My provider is Telekom in Germany. The SIM card needs a PIN.

The following points refers to the 3G/EG Modem section in the admin panel.

Each time after rebooting the router I need to input the AT command “AT+QRPTPARA=3”. After “reboot modem” the error “SIM card needs PIN” appears.

In manual mode I use for

APN: internet.v6.telekom (taken from Telekom´s home page)
Pincode: the 4-digit PIN for my SIM card

I have no idea why the PIN is not accepted by the modem. The identical SIM card works with this PIN in my cellular.

Best regards,


Can you confirm that the pin works if you put on your phone?

Actually you can remove the pin using AT command.