I want to change from nat 3 to nat 2 how do i do this

You will need to change the firewall settings of your router. If your Internet service provider is DSL then make sure that modem is in bridge mode. How to change NAT type to open

is this an issue with CoD or PS3? if it is then try this link.
http://boardsus.playstation.com/t5/PlayStation-Network/How-to-change-Nat-Type-3-to-Nat-Type-2/td-p/42580697

I’m happy to help further over the phone at https://www.6ya.com/expert/thomas_b83e841f114394f4

Here is a link no how to change the nat settings to use on gaming console I hope this helps http://linksys.lithium.com/t5/Wireless-Routers/Help-setting-up-WRT120N-PS3-to-nat-2-currently-NAT-3-was-nat-2-a/td-p/330656

To reduce the NAT

1 ) Disable the firewall in the router

2) Enable the Playstation in the DMZ

3) Make sure UPnP is Enabled

To reduce the NAT

1 ) Disable the firewall in the router

2) Enable the Playstation in the DMZ

3) Make sure UPnP is Enabled

To reduce the NAT

1 ) Disable the firewall in the router

2) Enable the Playstation in the DMZ

3) Make sure UPnP is Enabled

The way to change the NAT settings are similarly done to those posted in this article:

http://www.halownage.com/off-topic-discussion/2626-halo-3-nat-how-change-nat-settings.html

Thanks

make sure the security settings on router is WEP-Personal. I don't know what you have for internet but Dial-up, DSL, and satellite internet will not get NAT 1.

you need to make sure that when you change it that you apply in your modem setup page that bridge mode is activated so that it turns it into a dumb unit allowing just to pass through the internet stream thus allowing constant nat 2 connection

thanks for help , the error was from user that have viruse on his pc , thanks again