HOw do I do a 'factory reset' on a linksys dma2100. I puched 'reset' button on bottom but nothing apparently happened.

You actually may not have set up a password on the router. It comes from the factory with a default. The default username is left blank and the default password is "admin". If that doesn't work, then there is a different password on the unit. You can clear the password by doing a factory reset on the device, but then you will need to use the defaults to go back in a set up the device all over again. The external reset method is to press and hold the RESET button on the bottom or the back of the unit (it may be recessed into a small hole that you will need to use a paperclip on) for a minimum of ten seconds.

If it works sometimes ? when you unplug it then replugging it back in something is wrong with the modem / router or they might need to be reset .
or firmware upgrade
Reset linksy router b> One of the most common fixes for Internet connectivity often involves resetting the source of your Internet connection. If you have a DSL or cable Internet connection, you may use a Linksys router to get on the Internet. When you reset a Linksys router, you'll likely solve your connection problem.

Turn off the power to your computer's modem. Use the switch on your cable or DSL modem to disable it while you reset the Linksys router. Find the reset button your Linksys router. Most Linksys models have the reset option on the back of the router. Use a pointed pen or pencil to press in the reset button on your Linksys router. Hold down the reset button for approximately 30 seconds. Watch the lights on the front of the router. After you reset the router, power will get restored to the Linksys router. Once power's available, you can switch the modem back on. Reconfigure your router. After you reset your router, you'll have to log in and reconfigure your settings. The login name is typically left empty with your password as "admin."
Reset a Linksys Wireless Router b> You may need to reset your Linksys wireless router if you are having Internet connectivity issues or other networking problems. You can reset the router to the default factory settings, such as the default IP (Internet protocol) address, username and password. However, after you perform the factory reset, you can follow the initial setup instructions to replace your previous settings.

Write down any important settings you may have--such as the router's password--before you reset the router. Locate the reset button on the router. Some Linksys models have a reset button on the back side. Other Linksys models have a small pinhole you may need to access by using the tip of a pen or pencil. Press and hold the reset button for a minimum of 30 seconds to perform a factory reset on the Linksys router. The Linksys router should lose power. Power on the Linksys router to initiate the configuration wizard. Reconfigure any previous wireless settings on your Linksys router.

Hope this helps.
b>

Steven,

You MAY find this PASSWORD LINK very helpful!

An Updated List of Linksys Router Default Passwords

Get the FULL MANUAL here:

http://downloads.linksys.com/downloads/userguide/E1550_EN_UG,0.pdf

WARNING!! THE FOLLOWING WILL RESET EVERYTHING!!
(and I mean *everything* back to "Factory Settings")

The TOTAL ROUTER RESET instructions are:
Press and hold the Reset button on the E1550 at the bottom panel for about five (5) seconds then release, or access the web-based setup page then go to the Administration tab > Factory Defaults and click the Restore Factory Defaults button. To know more about this, click here.


BASIC RESET FOR ALL LINKSYS ROUTERS:

Step 1: Locate the Reset button and, using a pen or a paper clip, press and hold the Reset button for 10 seconds. QUICK TIP: For router models such as the Linksys Wireless-B and Wireless-G routers, press and hold the Reset button for 30 seconds.

Hope this helps!
Anthony

Reset Button

Note:

Resetting the router to the factory defaults will delete any changes you have made to the router, including any security settings. This should be used as a last resort.
The first method involves simply pressing a button located on the back of the router. The image below (courtesy of Linksys) shows where the button is located.

Linksys WRT54G Reset Button Location
To reset your router, use the following steps:

1. Press the reset button for 30 seconds.
The settings should now be returned to the factory default settings, meaning any changes you had made would be deleted.

2. Open up your Web browser and enter "192.168.1.1′ in the address bar.
3. For the login, leave a blank ID and enter "admin" as the password.

The router has now been reset. Follow the steps in Securing Linksys WRT54G Wireless-G Router to secure your router and create a good wireless network security.
Through the Web Administration PagesThe second method involves logging into the Web administration pages of the router. Use the following steps to reset the router using this method:

1. Open your Web browser and enter the IP address of your router. By default, the address is "192.168.1.1′.
2. Enter your user ID And password when prompted. Hopefully this has been changed, but if it hasn't, the default is no ID and "admin" as the password.
3. At the top of the Web page, click "Administration" and then "Factory Defaults".
4. Beside "Restore Factory Defaults", click "Yes".
5. Now click the "Save Settings" button at the bottom of the Web page.

Your WRT54G wireless router should now be reset to the factory defaults. Ensure you follow the steps outlined in Securing Linksys WRT54G Wireless-G Router to secure your router and maintain your wireless network security.
SummaryThis post has provided two methods you can use to reset your Linksys WRT54G Wireless-G router. If you are having problems with your router, try resetting the router to the factory defaults, and then make the changes again and see if the router starts working again.

This problem has affected many Linksys DMA extender owners in the US and Australia since 4 November; European users are unaffected.

Cisco (owners of Linksys) took an update server offline which the Linksys tries to communicate with; when it can't reach it, it fails to startup correctly.

The solution is to block the Linksys from accessing the Internet, at least until Cisco get the server back online -- apparently they are working on this and it should be fixed soon.

There are a lot more details in this discussion thread on The Green Button and I've also written a blog entry with more details.

Turn the router off.
Hold the RESET button in, for 30 seconds.
Turn the router on, and see if it has reset.
If not, then with the router still on, hold the RESET button in, for 30 seconds, and see if it has reset.

try disconnecting the battery for a few hours to see if it resets itself.

Reset Button is at the back of the router beside the internet port

To reset your router, use the following steps:

1. Press the reset button for 30 seconds.
The settings should now be returned to the factory default settings, meaning any changes you had made would be deleted.

2. Open up your Web browser and enter “192.168.1.1′ in the address bar.
3. For the login, leave a blank ID and enter “admin” as the password.

If it still does not work

Try Soft Reset

Use the following steps to reset the router using this method:

1. Open your Web browser and enter the IP address of your router. By default, the address is “192.168.1.1′.
2. Enter your user ID And password when prompted. Hopefully this has been changed, but if it hasn’t, the default is no ID and “admin” as the password.
3. At the top of the Web page, click “Administration” and then “Factory Defaults”.
4. Beside “Restore Factory Defaults”, click “Yes”.
5. Now click the “Save Settings” button at the bottom of the Web page

To reset your router, use the following steps:

1. Press the reset button for 30 seconds.
The settings should now be returned to the factory default settings, meaning any changes you had made would be deleted.

2. Open up your Web browser and enter “192.168.1.1′ in the address bar.
3. For the login, leave a blank ID and enter “admin” as the password.

The router has now been reset. Follow the steps in Securing Linksys WRT54G Wireless-G Router to secure your router.
Through the Web Administration Pages The second method involves logging into the Web administration pages of the router. Use the following steps to reset the router using this method:

1. Open your Web browser and enter the IP address of your router. By default, the address is “192.168.1.1′.
2. Enter your user ID And password when prompted. Hopefully this has been changed, but if it hasn’t, the default is no ID and “admin” as the password.
3. At the top of the Web page, click “Administration” and then “Factory Defaults”.
4. Beside “Restore Factory Defaults”, click “Yes”.
5. Now click the “Save Settings” button at the bottom of the Web page.

Your WRT54G wireless router should now be reset to the factory defaults

To the best of my knowledge Netflix will only work on the actual computer that it runs on and not an extender. The reason is that netflix uses internet streaming and Silverlight neither of which an extender can use.