1 INSTALLING YOUR GATEWAY

2 CHANGING YOUR COMPUTER'S CONFIGURATION

3 ISP CONNECTION METHODS

Connecting Your Gateway

1.Connect the power adapter to the Gateway and wait for the Alert LED to stop flashing.

2.Ensure that your modem and computer are both switched on.

3.Use the supplied cable to connect the Gateway's Ethernet Cable/ DSL port to the modem. Check that the Cable/DSL Status LED lights.

4.Connect your computer to one of the 10/100 LAN ports on the Gateway. Check that the LAN Port Status LED lights.

Connecting to a Hub or Switch

To share your Gateway with more than four users you will need an additional Hub or Switch. Connect a LAN port of your Gateway to the hub or switch, eg. OfficeConnect Dual Speed Switch 8 Plus.

Power

Supply Unit

Your existing

Cable/DSL Modem

3Com OfficeConnect

Wireless 11b Cable/DSL

Gateway

You may need to make some changes to the configuration of your computers in order to communicate with the Gateway.

DSL users with PPPoE or PPTP Client Software

If you have PPPoE or PPTP client software installed on your computer, you will need to disable it. To do this:

1.From the Windows Start menu, select Settings > Control Panel.

2.Double click on Internet Options.

3.Select the Connections Tab. A screen similar to Figure 2 should be displayed.

4.Select the Never Dial a Connection option and click OK.

You may wish to remove the PPPoE client software

from your computer to free resources, as it is notFigure 2 required for use with the Gateway.

Obtaining an IP Address automatically

Follow the instructions below for your particular operating system to ensure that your computers are configured to obtain an IP address automatically.

For computers using Windows 95, 98 and ME.

1.From the Windows Start Menu, select Settings > Control Panel.

2.Double click on Network. Select the TCP/IP item for your network card as shown in Figure 5 and click on Properties.

3.In the TCP/IP dialog, select the IP Address tab, and ensure that Obtain IP address automatically is selected as shown in Figure 6. Click OK.

4.Restart your computer.

For computers using Windows XP.

1.From the Windows Start menu, select Control Panel

2.Click on Network and Internet Connections

3.Click on the Network Connections icon

4.Double click on LAN or High Speed Connection icon. A screen titled Local Area Connection Status will appear

5.Select Internet Protocol TCP/IP and click on Properties.

6.Ensure that the options Obtain an IP Address automatically, and Obtain DNS servers automatically are both selected as shown in Figure 4. Click OK.

7.Restart your computer.

Before you can configure the Gateway you need to know the IP information allocation method used by your ISP. There are four different ways that ISPs allocate IP information, as described below:

1. Dynamic IP Address (DSL or Cable)

Dynamic IP addressing (or DHCP) automatically assigns the Gateway IP

information. This method is popular with Cable providers. This method

is also used if your modem has a built in DHCP server.

2. PPPoE (DSL only)

If the installation instructions that accompany your modem ask you to

install a PPPoE client on your PC then select this option. Note that

when you install the Gateway, you will not need to use the PPPoE

software on your PC. To configure the Gateway you will need to know

the following: Username, Password, and Service Name (if required by

your ISP).

3. Static IP Address (DSL or Cable)

The ISP provides the IP addressing information for you to enter

manually. To configure the Gateway you will need to know the

following: IP Address, Subnet Mask, ISP Gateway Address, and DNS

address(es).

Wireless

Users

Your PC

Figure 1 Example Network with OfficeConnect Wireless 11b Cable/DSL Gateway.

For computers using Windows 2000.

1.

From the Windows Start Menu, select Settings >

 

 

 

 

Control Panel.

 

 

 

2.

Double click on Network and Dial-Up connections

 

 

 

3.

Double click on Local Area Connection.

 

 

 

4.

Click on Properties.

 

 

 

5.

A screen similar to Figure 3 should be displayed.

 

 

 

 

Select Internet Protocol TCP/IP and click on Properties.

 

 

 

6.

Ensure that the options Obtain an IP Address

 

 

 

 

automatically, and Obtain DNS servers automatically

 

 

 

 

are both selected as shown in Figure 4. Click OK.

 

 

 

7.

Restart your computer.

Figure 4

Figure 5

Figure 6

 

Figure 3

4. PPTP (DSL or Cable)

PPTP is only used by some European providers. If the installation

instructions that accompany your modem ask you to setup a dialup

connection using a PPTP VPN tunnel then select this option. Note that

when you install the Gateway, you will not need to use the dialup VPN

on your PC anymore. To configure the Gateway you will need to know

the following: Username, Password, Service Name (if required by your

ISP), and VPN Server address (usually your modem).

You will be asked for the IP Allocation Mode when you run the Setup Wizard.

4RUNNING THE SETUP WIZARD

1.If you haven’t already done so, restart your computer.

2.Launch your web browser and attempt to contact the Gateway by typing the following URL in the location bar: http://192.168.1.1. If you can access the Login page, then your computer has correctly received an IP address from the Gateway.

3.Login using the default password admin. The Wizard will attempt to launch automatically, but if it fails, select the Wizard tab and click on the Wizard... button.

4.Where possible, the Wizard will recommend settings for most parameters. However, there are some settings which you must provide. Most of these will have been provided to you by your ISP when you set the account up.

5.By default, 3Com recommends that you leave the LAN IP address for the Gateway as 192.168.1.1. However, if you should choose to change it, make a note of the new address :

Gateway's LAN IP Address

_______._______._______._______

 

 

6.When the DHCP Server Settings page is displayed, make sure that the Enable the DHCP Server with the following settings option is selected.

Connecting to the Internet

When the Wizard has completed, attempt to browse to an Internet web site, such as www.3com.com. If you can successfully access this site, then your computer, Gateway and Cable/DSL modem have been correctly configured.

Refer to the Problem Solving section if you cannot make contact with the Gateway or the Internet.

5CONNECTING TO THE WIRELESS LAN

1.Now you have configured the Gateway via the wired computer, you can connect to the Gateway via a wireless computer.

The Gateway and wireless clients must have both the same SSID and the same WEP settings. All wireless clients must use Infrastructure mode.

The default wireless settings for the Gateway are:

Service Area Name / SSID is 3Com Channel 11 WEP Encryption is off.

2.If you do not have a Wireless LAN you can use the Gateway’s default settings. Ensure that your wireless clients have the default SSID, channel and WEP as detailed above.

If you have an existing Wireless LAN, configure the Gateway to use the same SSID and WEP settings to be compatible with your existing wireless network.

Service Area Name/SSID

______________________________

 

 

Channel Number

______________________________

 

 

3.If your computer has both a wired and wireless NIC installed, you must ensure that only one NIC is used to communicate with the LAN. To use the wireless NIC, unplug the Ethernet cable and reboot your computer.

4.Launch your web browser and attempt to browse to an internet web site such as www.3com.com. If you can successfully access this site, then your wireless computer, Gateway and Cable/DSL modem have been successfully configured.

5.3Com strongly recommends that you enable WEP encryption to improve the security of your wireless network and you change the SSID to something other than the default. Consult the on line help or the User Guide for details.

PROBLEM SOLVING

If you are experiencing difficulties with your installation, try the following:

Ensure all networking equipment is switched on. The Gateway should be showing a green Power LED. If it is not, check the power adapter connection. Do not use any power adapter with your Gateway other than the one supplied.

Ensure the Cable/DSL Modem is connected. The Gateway should be displaying a green or yellow Cable/DSL Status LED. If no LED is displayed, check that your modem is switched on and that it is connected to the Cable/DSL port with an Ethernet cable.

Ensure that the computer is connected to the Gateway. The Gateway should be displaying a green or yellow LAN Status LED. If it is not, check that the computer is connected to one of the Gateway's LAN ports with an Ethernet cable.

Ensure that you do not have a web proxy enabled on your computer. Go to the Control Panel and click on Internet Options. Select the Connections tab and click on the LAN Settings button at the bottom. Make sure that the Use Proxy Server option is unchecked.

If you are unable to access the Gateway's Web interface. Launch a web browser and enter http://192.168.1.1. If you chose a different IP address, use that instead. Ensure that you include the http:// prefix.

If you cannot remember the Gateway IP address. Run the Gateway Discovery application from a wired computer. The application can be found on the CD-ROM. This will always connect you to the Gateway.

Ensure your computer is configured correctly. Make sure that the computer obtains an IP address automatically. See Section 2 for details. Ensure that the NIC card is configured for autonegotiation.

Cable Internet Connections.

Some Cable providers authenticate to the user’s computer MAC address. If this is required, go to Internet Settings and select Clone the MAC Address. This will copy the MAC address of your computer onto the Internet port of the Gateway.

Some Cable providers authenticate to the user’s Host Name. If this is required, go to Internet Settings and enter the host name of your computer into the Host Name field.

DSL Internet Connections.

If you have an existing DSL line and have PPPoE or PPTP client software installed on your computer, you will need to disable it. See section 2.

If your DSL line uses PPPoE or PPTP, go to Internet Settings and ensure that the correct IP Allocation mode is selected. Check that your Username and Password are correct.

Some DSL providers require the use of a PPPoE Service Name. If this is required, go to Internet Settings and enter the PPPoE Service Name in the field provided. If it is not required, you must leave it blank.

Wireless Configuration. If you are unable to access the wireless LAN:

Ensure that the wireless client is set to infrastructure mode.

If you have a wired and wireless NIC in the same computer, ensure that the wired NIC is disabled. See section 5 for details.

Ensure that the Service Area Name /SSID is the same for the wireless client and the Gateway.

Ensure that the Gateway WLAN LED is on. If not, go to the Wireless Settings menu and enable Wireless Networking.

Ensure that WEP (Wired Equivalent Privacy) is the same for the wireless client and the Gateway. If there are problems, turn WEP off in the client and the Gateway until you have established a wireless connection.

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3Com 3CRWE53172 dimensions Running the Setup Wizard, Problem Solving

3CRWE53172 specifications

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