Dsl modem loses connection

YES THATS TRUE. TO CONFIGURE THE ROUTER. NEED THE PPPOE USERNAME AND PASSWORD FROM THE INTERNET SERVICE PROVIDER. VPI AND VCI SETTINGS.
..THEN ACCESS THE ROUTER PAGE
..GO TO ADVANCE SETUP PAGE.
..THEN LAYER2 INTERFACE
..CLICK ADD
..CONFIGURE THE SETTINGS.
..POWER CYCLE THE NETWORK.

It's not the username and password from your ISP. If you try to access your router and you have not changed anything, use the following values:
username = admin
password = admin

Once in the router interface, you will have to configure the router for your DSL-modem (I guess it's DSL since Windstream does not produce cable modems.)
Here fill in the username and password your ISP provided you with.

Let me know if you have any questions.

Who is your Internet service provider?
Is it cable or DSl?
What is the model number of your router?
You can access Internet through the modem that means the modem is working fine. it is just the Internet connection settings which might not be working properly.
You can open the setup page of the router and change the settings manually.
Try this router installation help website and see if that helps you

Hi,
* 1 Unplug your DSL modem and D-Link router. In order for the network to properly recognize its devices, these devices must be attached in a specific order.

* 2 Plug in your DSL modem's power cord. There is usually no power button on a modem. Simply plugging in its electrical cable will turn it on. Give your DSL modem a couple minutes to re-establish its connection to AT&T's network before taking any further action.

* 3 Plug in your D-Link router's power cord. Like the DSL modem, this router will probably not have a power switch; simply plug in the power cable, and it turns on. Let the D-Link router sit for a couple minutes while it establishes its connection to the DSL modem and AT&T's network.

* 4 Physically attach your computer to the router with an Ethernet cable. Even if the router and modem are wireless, a physical connection must be established to properly configure the router. If this is not a wireless network, then your setup procedure is essentially complete.

To access a D-Link router on your network, open an Internet browser and navigate to the 192.168.0.1 address. This will bring you to your D-Link router's interface. The default User Name is "admin" (without the quotes), and there is no password. Enter the User Name and click the "Log In" button. This will bring you to the Setup window. Refer to your D-Link router's documentation for changing the default password (highly recommended) and forwarding ports.

If this is a wireless network, you have a couple further steps. First, change your network's SSID (Service Set Identifier) title, so that you can recognize it when other wireless networks are nearby. Also, choose your wireless encryption and passphrase. WPA2 (Wi-Fi Protected Access 2) is a solid option. Specific instructions depend on your model of D-Link router; so refer to your documentation (which can usually be found at the manufacturer's website if you do not have it on hand).

* 5 Disconnect the Ethernet cable from your computer. Your new wireless network should be visible with your computer's wireless adapter. Windows and OS X will notify you of networks in range when your adapter is active. Connect to the one with your SSID, and enter the passphrase.

No driver needed since you aren't connecting the pc the the modem, but to the router.
Connect the pc to the D-Link DSL-504T with a LAN cable, access it from a browser by going to this IP - 192.168.0.1 - , in there access the modem settings and configure it accordingly.

When you are connecting to it, are you using the lan connection straight into the device? When you do that is it showing as at least connected to the device on the computer? You did not post the operating system but can you check the router address by using the command prompt and using tracert commands to see what it is listed as? If you are using windows 10 have you use the powershell command to reset the winsock? Did you use the 30 30 30 reset method on the device?

You can access your wireless router by first running you ethernet cable from pc to wireless, then in address bar, type 192.168.1.1 and this will enter the wireless router's software. If it asks for username and password, try typing admin for both.

Ethernet and DSL lights are indicating you have ADSL available on your line, and that you have computers connected to the router.

What has probably happened is that Optus did not set up the new router with your username and password. Go to thw following website for details on how to setup the modem.

http://help.optuszoo.com.au/help/dsl/connected/windows/optus_modems/speedstream_4200



Manual Modem Settings The Optus DSL Broadband self-installation CD configures all the necessary settings for your DSL Broadband service. You do not need to manually configure your modem if you have run the self-installation CD. While the following information is provided for your reference, using the self-installation CD is the recommended method for configuring your modem.
The Siemens SpeedStream 4200 ADSL modem can use either USB or Ethernet to connect to your computer.

• If you are connecting via USB you will need to run the self-installation CD to install the USB driver before you connect your modem. The Siemens SpeedStream 4200 ADSL modem supplied by Optus has been customised for the Optus DSL Broadband service. Only the USB driver supplied on the self-installation CD will work with the Optus service. If you do not have the self-installation CD, you can download the latest drivers from the Siemens website.
• If you are connecting via Ethernet it is possible to manually configure your modem without the self-installation CD. Only a web browser is required.

After connecting your modem there are two key steps to manually configure your modem for the Optus DSL Broadband service:

• PC settings - Configure your computer's Ethernet network interface.
• Configure Your Modem - Set the password in your modem's configuration pages.

top
PC Settings Step by step instructions are provided for each of the supported Windows operating systems:

• Windows 98/Me
• Windows 2000
• Windows XP
• Windows Vista

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Configure Your Modem To configure your modem settings you must now access the configuration manager using your web browser. This is done by entering the IP address in the address bar of the browser window as follows:
Note: If you are updating the password in your modem, please complete steps 1 to 3 only.
Step 1 of 5

• Enter http://10.1.1.1 (Default IP address of the Optus Supplied Siemens SpeedStream 4200) to access the modem Configuration software. You may wish to add this page to your Favorites for easy access later.
• The following modem System Summary screen will appear.

Step 2 of 5

• Click on the word Setup in the green menu of options on the left side of the web page. An expanded set of options will be displayed.
• Click PPP in the list of options that appeared below the word Setup.
• The ISP Password page will appear:

• Replace the default username ([email protected]) with the username provided for you by Optus DSL Broadband.
• Replace the default password with the password provided by Optus DSL Broadband in the Password field.
• Note: You will find your Optus DSL Broadband username and password on the letter you received with your self-installation kit.
• Save these details by clicking the Save Settings button.

Step 3 of 5

• The next screen will ask you to disconnect and reconnect to the Optus DSL Broadband service.

• Click the link to return to the System Summary page.

• Click the Disconnect button to disconnect the modem from the Optus DSL Broadband service. The text on the button will change to Connect.

• Click Connect to reconnect the modem to the Optus DSL Broadband service.

Step 4 of 5

• Click on the word Setup in the green menu of options on the left side of the web page. An expanded set of options will be displayed.
• Click the word Mode in the green menu of options on the left side of the web page.

• Confirm that Optus Bridge is the selected operation mode.
• If Optus Bridge is not selected click the radio button next to Optus Bridge to select it.
• Click the Apply button.

Step 5 of 5

• Click the Reboot button to restart the modem using your saved settings.

• After about a minute the modem will return to an operational state and connect to the Optus DSL Broadband service.

Once the modem has rebooted and the ADSL connection has been successfully established the DSL LED indicator will light steady green.
Your modem is now connected to the Optus DSL Broadband service.

make sure the dsl modem is in bridge mode. you do this by connecting directly to the modem then accessing modem configuration page. after doing this connect the way everything was before. now go to router admin page, then setup tab at the top, then choose internet, manual setup. in the place where its says my internet connection is select PPPoE. then put in your dsl username, password and etc. save settings. this should fix the problem

Try to change the LAN IP address of your router to 192.168.2.1 by accessing the router's Setup page. You also need to set your Westell modem to "full-bridge mode". You need to ask assistance from your ISP to bridge the modem. After that, set-up the Linksys router to PPPoE then power cycle it.