Check your network connection port 3659 (UDP)

Battlefield 4 PC
1

Check your network connection and make sure that port 3659 (UDP) is open

Never Had a problem playing, and i can play Standard BF4 no issues. But when i try to play Second Assault if get “Check your network connection and make sure that port 3659 (UDP) is open”

2

Agreed.

I had loads of connection problems.. Could maybe log into 1 of 15-20 servers i tried.
I then opened each port “manually” (DMZ did not work with BF4)

TCP: 80, 443, 9988, 20000-20100, 22990, 17502, 42127
UDP: 3659, 14000-14016, 22990-23006, 25200-25300

After I did this, I haven’t had a failed login once. All successful atempts!

3

Thanks i’ll give it a try… I would still like to know what has changed to cause this issue!

4

got the same issue trying to resolve it now, it was ok yesterday and sunday

5

How can you open them “manually”?

6

i also got it 2 hours ago restarted pc played fine since

7

Could someone help me how to do this? Tried in the router config, no success yet.

8

Same here, problems started with Second Assault.

9

I was 30 minutes into a game when I got booted with this error. It’s a new bug of some sort.

10

Oh god, back to titanfall.

11

funny thing is, you can still connect to an empty server and ‘not’ get that error. Try it.. seriously, why would I be able to connect to an empty server with no errors, but then suddenly get the Check your network connection port 3659 (UDP) on a busy server.

12

I get this error on the same server, where i played 1 hour before. ..

13

where can i open those ports on win 8.1?

14

For port forwarding use the website guys http://portforward.com/english/routers/port_forwarding/ [portforward.com]

Choose modem/router , and modem/router model (if no exact one there, choose similar ones to your modem router)

Choose Battlefield 4

get your local pc ip with CMD command " ipconfig " ( like 192.168.1.42 )

And do the instructions there for opening all necessary ports.

(do not use program there to open ports, its a bit fishy program)

15

also make your PC a static IP, so all of that port forwarding will continue to work if your ip changes, if you can’t do that use localhost or 127.0.0.1 which should port forward those ports for everyone on the network..

16

Open for outgoing or incoming connections?

17

both

18

Ok this is a SERVER SIDE problem guys, when you get this error, server is kicking players or server crashes (server become empty), happened 2 times today on metro. And ports already opened…

Error

Game disconnected: Client closed down connection. Check your network connection and make sure that port 3659 (UDP) is open.

19
20

For port forwarding use the website guys http://portforward.com/english/routers/port_forwarding/ [portforward.com]

Choose modem/router , and modem/router model (if no exact one there, choose similar ones to your modem router)

Choose Battlefield 4

get your local pc ip with CMD command " ipconfig " ( like 192.168.1.42 )

And do the instructions there for opening all necessary ports.

(do not use program there to open ports, its a bit fishy program)

this is hardly a solution for a household that have more than one BF4 player on different PC’s

EA/DICE needs to fix this. Or come up with a solution that works for households with more than 1PC and Origin-account.

Portforwarding to one single pc is not a solution that will suffice in the long run.