Tenda 3G186R User Manual page 33

Mobile Wireless Modem
Remote Management: Select Enable/Disable to allow/disallow remote
users to configure your device via Web browser from Internet.
Respond to WAN Ping: Select Enable/Disable to allow/disallow your
device to reply to ping request from Internet. Only when enabled, can
Internet users get ping request from your device.
7.3.5 PIN Code Management
If you enabled PIN code, you need to restart the device and must enter
a correct PIN code when entering its web-based utility.
PIN Code is disabled by default. You can select to Enable or Disable it
from the drop-down list. If you enter a wrong PIN code 3 consecutive
times, you will be required to enter a PUK code; and if you enter the
wrong PUK code 10 consecutive times, you SIM card will be damaged.
Contact your ISP for help in case you forget the PIN code.
33