ATT Netopia Cayman 3347w Losing Connection

2012-05-02 11:58:00

A local martial arts studio I handle IT for has a routine problem they encounter. Every once in a blue moon, their internet shuts off. It appears as though the router resets itself, and the wireless turns off. They have a Netopia Cayman 3347w router, and ATT DSL service.  Finding a solution for this one originally was difficult, and I'm sure I am not the only person to ever encounter this problem, so I'll detail out the steps taken here for you.

The first thing you have to do if you are on wireless is hard wire the computer to the router with an ethernet cable to get yourself on the network.  From here, open up your web browser and enter as the address.  You will be prompted to put in a username and password.  Open another tab or windows and enter any site address.  It wont connect out, but it will prompt you to enter a new password.  Do this and click submit.  Afterward, go back to your original tab.  Enter Admin as the username and the password you just created as the password.

Next, you will be prompted for your ISP login and password.  If you don't have these on file, you can call ATT tech support, provide them with some of your billing information, and they will tell you.  Enter this information and you will be taken to the next screen which will attempt to connect to your ISP.  If this works, great, you're up and running.  In our particular situation, no matter how long you let it sit there, it wont connect.  So go ahead and just click Home to skip this and take you to the main menu.

At this point on the far left side you will see an option that says Expert Mode.  Click on this.  The router will ask you to confirm that you really want to do this.  Click yes and it will take you to a new menu with many more options.  Next, click on configure, then click WAN, and then at the bottom of the page you will click ATM.  What we'll be doing now is specifying to the modem how we want it to connect to ATT.

There will be three fields under this option.  You have VPI, VCC, and VCI.  In our particular case, the VPI was set to 8 by default, however to connect to ATT it must be set to 0.  The ATM circuit configuration should be as follows:

VPI = 0
VCC = 1
VCI = 35

After you have made sure all of these are correct, click submit.  A yellow triangle with an exclamation point will appear in the top right corner.  You will be directed to click on this.  It will take you to a menu where you can select Save And Restart.  Click on this and wait a minute.  The router will reboot with your configuration changes.  When it is finished, it will ask you to login again with Admin and the password your created in the beginning.  Once you do this, you will go to the main screen and should see under where it says "Status:" a green bar that says Up.  If this is present, your internet connection is back.

We only have to do one last thing to complete this process - turn the wireless back on.  Go back into expert mode and click on LAN.  Then click Wireless and check the box that says to turn the wireless on.  Click submit, then the yellow triangle, and save and restart again.  The router will restart and you should be back up and running.