D-Link DSL-2750U User Manual page 147

DSL-2750U Wireless N ADSL2+ USB Modem Router
User Manual
To change the PIN code, enable the PIN code check, enter the current code in the PIN code field,
then enter a new code in New PIN code and New PIN code confirmation fields and click the
Enter button.
If upon one of the operations described above you have entered an incorrect value in the PIN code
field three times (the number of remaining attempts is displayed in the Attempts left field), the
identification card inserted into your USB modem is blocked.
For further use of the card, enter the PUK code in the relevant field, and then specify a new PIN
code for your SIM card in the New PIN code and New PIN code confirmation fields. Click
the Enter button.
Figure 107. Entering the PUK code.
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Configuring via Web-based Interface