TP-Link TDW8968V3 User Manual page 41

TD-W8968
Location: The location where you're enjoying the 3G card.
Mobile ISP: The ISP (Internet Service Provider) you apply to for 3G service. The modem
router will show the default Dial Number and APN of that ISP.
Note:
If your Location or Mobile ISP is not listed, please untick the box before Automatically fill
ISP Information. Then fill the Dial Number and APN blanks below.
Dial on demand: Dial on demand is dependent on the traffic. If there is no traffic (or Idle) for a
pre-specified period of time (Inactivity Timeout), the connection will drop down automatically.
And once there is traffic send or receive, the connection will be automatically on. If you want
your Internet connection to remain active at all times, enter 0 in the Inactivity Timeout field.
Note:
Sometimes the connection cannot be disconnected although you specify a time to Inactivity
Timeout because some applications visit the Internet continually in the background.
Connect/Disconnect: You can click the Connect/Disconnect button to connect/disconnect
connection immediately.
Authentication Method: Some ISPs need a specific authentication type, please confirm it
with your ISP or keep it Auto.
MTU size(in bytes): The default MTU (Maximum Transmission Unit) size is 1480 bytes, which
is usually fine. For some ISPs, you need modify the MTU. This should not be done unless you
are sure it is necessary for your ISP.
Note:
3G settings is unavailable when operation mode is not 3G Router Mode and the backup is not
enabled. Please tick the box in the next screen to enable 3G as a backup solution for Internet
access or change settings on Operation Mode if you want to use 3G.
300Mbps Wireless N USB ADSL2+ Modem Router User Guide
Figure 4-20
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