TP-Link TL-MR3420 Router Manual PDF (Setup & Configuration Guide)

Page 36 / 121 Scroll up to view Page 31 - 35

TL-MR3420

3G/3.75G Wireless N Router

-29-

¾

Set the Dial Number and APN

manually -

Check the box and fill the Dial Number and APN

blanks below if your ISP is not listed in the

Mobile ISP

list or the default values are not the

latest ones.

¾

Dial Number

-

Enter the Dial Number provided by your ISP.

¾

APN

-

Enter the APN (Access Point Name) provided by your ISP.

¾

Username/Password

-

Enter the Username and Password provided by your ISP. These

fields are case-sensitive.

Click the

Connect

button to connect to your 3G network. Once the connection is successful, you

will find the 3G screen is similar to Figure 4-8. Click menu

Status

and you will see the 3G status is

similar to Figure 4-9.

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TL-MR3420

3G/3.75G Wireless N Router

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Figure 4-8

Page 38 / 121

TL-MR3420

3G/3.75G Wireless N Router

-31-

Figure 4-9

¾

Connect on Demand

-

You can configure the Router to disconnect your Internet connection

after a specified period of the Internet connectivity (

Max Idle Time

). If your Internet

connection has been terminated due to inactivity,

Connect on Demand

enables the Router to

automatically re-establish your connection as soon as you attempt to access the Internet

again. If you wish to activate

Connect on Demand

, click the radio button. If you want your

Internet connection to remain active at all times, enter

0

in the

Max Idle Time

field. Otherwise,

enter the number of minutes you want to have elapsed before your Internet connection

terminates.

)

Note:

Sometimes the connection cannot be disconnected although you specify a time to

Max Idle

Time

because some applications visit the Internet continually in the background.

¾

Connect Automatically

-

Connect automatically after the Router is disconnected. To use this

option, click the radio button.

¾

Connect Manually

-

You can configure the Router to make it connect or disconnect manually.

After a specified period of inactivity (

Max Idle Time

), the Router will disconnect your Internet

connection, and not be able to re-establish your connection automatically as soon as you

attempt to access the Internet again. To use this option, click the radio button. If you want your

Internet connection to remain active at all times, enter

0

in the

Max Idle Time

field. Otherwise,

enter the number in minutes that you wish to have the Internet connecting last unless a new

link requested.

)

Note:

Sometimes the connection cannot be disconnected although you specify a time to

Max Idle

Time

because some applications visit the Internet continually in the background.

Page 39 / 121

TL-MR3420

3G/3.75G Wireless N Router

-32-

¾

MTU Size

-

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.

¾

Use the following DNS Servers -

If your ISP specifies a DNS server IP address for you, click

the checkbox, and fill the

Primary DNS

and

Secondary DNS

blanks below. The Secondary

DNS is optional. Otherwise, the DNS servers will be assigned dynamically from ISP.

¾

Primary DNS

-

Enter the DNS IP address in dotted-decimal notation provided by your ISP.

¾

Secondary DNS

-

(Optional) Enter another DNS IP address in dotted-decimal notation

provided by your ISP.

Click the

Save

button to save your settings.

Click the

Modem Settings

button if your 3G USB Modem is not supported by the Router, and

then you will see the screen as shown in Figure 4-10. Parameters of your USB modem can be

configured on this page.

Figure 4-10

3G USB Modem Settings

There are already much 3G USB modem information embedded in the router. The USB modem

parameters will be set automatically if the card is supported by the router. But when the router

finds the card you just insert "unknown" to it, it will prompt you to set these parameters. The router

can identify your "unknown" card if the correct parameters are in the list. We suggest you to do the

“3G USB Modem Setting” only in such circumstance.

To add 3G USB Modem entries, follow the steps below.

1. Download a most recent 3G USB modem configuration file from our website

(http://www.tp-link.com).

2. Click the

Add New...

button in Figure 4-10, and then you will see Figure 4-11.

3. Click

Browse…

to select the path name where you save the downloaded file on the computer

into the File blank.

4. Click the

Upload

button to upload the configuration.

Page 40 / 121

TL-MR3420

3G/3.75G Wireless N Router

-33-

Figure 4-11

Add or Modify a 3G USB Modem Entry

4.5.3 WAN

Choose menu “

Network

→

WAN

”, you can configure the IP parameters of the WAN on the screen

below.

)

Note:

WAN settings are unavailable when the Internet Access mode is set to 3G Only mode. Please

change settings on

4.5.1 Internet Access

if you want to use WAN.

1.

If your ISP provides the DHCP service, please choose

Dynamic IP

type,

and the Router will

automatically get IP parameters from your ISP. You can see the page as follows (Figure

4-12):

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