How to configure a Nettalk Duo VOIP box on a TPlink Router (W8968)

If you are like me and purchased a TPlink router or router/modem combo, you may have had trouble getting it to work.  There are lots of things you could try, but let me tell you what worked for me.
(This is the list of all the stuff to try)
http://faq.nettalk.com/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=256&nav=0,16

I noticed that the TPlink router gave 0.0.0.0 for the Primary AND secondary DNS servers.  Odd, but the internet worked, so I didn't care.  But when I changed the Primary to 4.2.2.2 and the secondary to 4.2.2.1, it worked!
Here is how to do think on your TPlink router. 
Open up a web browser and go to 192.168.1.1. 
Login to the router if necessary.  the default login/password for W8968 is admin/admin.
Go to DHCP server.  Then click on DHCP settings.
Enter the correct DNS settings in the two boxes and then click Save.
Power off the Nettalk device and turn it back on.



Here is the text from the link above:
Networking devices can sometimes block the netTALK from communicating with our infrastructure. You may want to consult the manufacturer of your router in terms of applying a special security setting that would allow for our netTALK TK6000 or DUO device to communicate properly with our infrastructure. The bottom of the e-mail will give possible generic solutions to your issue.
Every time you make a change in the router be sure to power cycle the TK6000 or DUO.

SECURITY INFO:
-Try using a different DNS < Very prevalent with cable internet service providers
++Preferred DNS: 4.2.2.2
++Alternate DNS: 4.2.2.1
-You may need to put the DUO on the DMZ.
-You may need to lower restriction on your SPI firewall.
-You may need to change a setting on the router called SIP ALG (if enabled, try disabling. If Disabled, try enabling).
-You may need to change a setting from UDP restricted to UDP independent.
-You may need to unblock the following ports. Try port triggering first, than try port forwarding to the DUO's IP
: 69 - netTALK updates
: 80 - netTALK remote management (only enable this temporarily so tech support can connect to your duo)
: 5060/5085/7060 - Phone registration
: 12000 - Voice
-Check to see if your router has the latest firmware installed.
-Finally if all else fails, you can attempt to connect the DUO in another environment (a friend's/relative's/neighbor's) home to see if it can grab the initial configuration in their home.

MANUFACTURER PHONE NUMBERS:
(Representative may request the IP address of the netTALK DUO device, you can get this information by dialing *41 on your phone).
AT&T: 1-800-331-0500
COMCAST: 1-800-COMCAST / 1-800-266-2278
EMBARQ: 1-877-290-5458
VERIZON: 1-800-837-4966
NETGEAR: 1-888-NETGEAR / 1-888-638-4327
LINKSYS: 1-800-546-5797
MOTOROLA: 1-800-653-5350
DLINK: 1-877-45D-LINK / 1-877-453-5465
BELKIN 1-800-223-5546

AT&T dsl modem settings

Yesterday I got a TPlink W8968 router/modem combo to replace my old Speedstream 4100 that bit the dust after 8 years.  It wouldn't work!  I tried the setup disk, and then the web page quick setup, and then I called AT&T.  Since I knew what I was talking about, the rep was more than happy to stay on the line until I got it working, but I let him go after 30 minutes becuase it just would not work.  but he did give me the following settings:

VCI: 35
VPI: 0   This depends on your state.  Western is 8, some eastern states are 0


Some other settings you'll need to know are:

Line Status:DSL Connected

DSL Modulation Type:ADSL_G.dmt

Annex Type:Annex A

Enable Bit Swap

 Enable SRA

So after I checked all that and found all that out, guess what the problem was?  I was using the wrong power cable.  I was using the one from the old modem, which was 5 V as 3.2A and the one that came with the TPlink was 12V 1 A!