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May 17 2014
By: brekan21 First Son 1 posts
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NAT Type Failed - Playstation 4 NW-31374-8

4 replies 5116 views Edited May 17, 2014

I'm not able to connect to servers in FIFA 14, NFS, war Thunder and I get NAT Type Failed error NW-31374-8 in PS4 Test Internet Connection. Internet connection and PSN Sign-in is Successful.

 

I have wifi router Cisco EPC3925 and I've set up port forwarding as described on http://portforward.com, I've turned on DMZ, turned off all the firewall features of the router but no success. I have no idea what else should I try. I get the same result for wifi as well as for cable connection.

Any recomendations?

 

Weird thing is that War thunder in multiplayer was working few weeks ago but it stopped working-and I didn't have to wet up any port forwarding on my router. Don't know what happened...

 

Thanks for any help...

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First Son
Registered: 06/23/2014
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Re: NAT Type Failed - Playstation 4 NW-31374-8

Jun 23, 2014

Mate I'm having the same problem and all the people at playstation are saying that I need to set up a static ip which isn't going to happen as it costs money. I'm so frustrated

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Monster Hunter
Registered: 02/28/2014
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Re: NAT Type Failed - Playstation 4 NW-31374-8

Jun 23, 2014

@brekan21 have you tried updating your routers firmware? Also be sure to open your NAT.

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First Son
Registered: 08/25/2012
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Re: NAT Type Failed - Playstation 4 NW-31374-8

Jun 23, 2014

I also keep having this problem, combined with the CE-33987-0

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First Son
Registered: 09/18/2014
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Re: NAT Type Failed - Playstation 4 NW-31374-8

Sep 18, 2014

Same problem my game worked and i stopped working after i playd it for like 3times, but it onlie happend to one of my games, and thats g** its the ps4 its somfing wrong with!! 
And Playstation need to come up with an update to fix it ....

 

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