Check your network connection port 3659 (UDP)

Don’t open ports if you don’t know what you are doing. Opening ports probably won’t fix any issues with this game.

Load of crap … why the F should we need to open UDP ports to play the game.
Have they broken the game even more …

this worked for me
Fixing UDP Port 3659 error

so just some intel on this issue, i have 2 rigs in the same room on a comcast modem no switch, it seems to always happen when i join the 2 accounts on the same server, basicly when i join on the other comp it gives the error.every time but when i join a differnt server its fine, and if the other rig is in a game he will get kicked when i join with same port 3659 (UDP) error.i opened the port and still its the same so its as always broken now, cant play with team in my house only noobs,

EA/Modertor reply on this you ignorant fuqs! instead of just deleting the post. WE ARE YOUR CUSTOMERS AND YOU JUST FUCKING IGNORE US!!!??? UNBELIEVABLE

That is a very old fix that I had to use in the beta, and others had used long before then. Unfortunately, that will not fix the problem for everyone. I used to use it when Netgear gave me an IP conflict when trying to forward 3659, but I finally a while back got it forwarded by doing another port, then editing it and changing the number to 3659. I still have 3659 and every other required port forwarded, with upnp off and everything to its right setting. I have changed nothing in my router settings and began getting the client closed down connection error, so I started using Smart Port Forwarding again, but it isn’t helping me now with the correct configuration. DICE and EA have an issue they need to fix, not me.

I know, Dice is the crappiest game producer out there. What good is being “innovative” if the basic game works like shit.
This helped me after getting this with the SA release. Just hoping it helps some people, because I wouldnt want to wait/rely on DICE to fix anything

They say they’re fixing a sound loop error, but I really think they should let people be able to connect, because it’s definitely not like everyone getting the client closed down connection error would shift to the sound loop error. That doesn’t happen to everyone.

Well it solved mine ! thx

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

I got this shit 2nd time. 1st when SA was released and 2nd one today after 8h. Can someone from DICE explain to me why after the update game want to use this port ? It’s not like its using it all the time. Or its another fuckup like “something went wrong” ?

Just an EA very low quality scam product

People please… don’t touch your router settings if it was working fine before. Clearly DICE has broken something and it is not our hardware.

like hell im gonna mess my ip router net settings it was fine before sa i will wait till it fixes

Still no luck for me… same issue.

I’ve got the same issue. Always the “Check if your UDP 3659 port is open” .. For and after second assault.. The port is open dammit.
In Dec is was even worse but then I opend the ports and everything worked fine. Then came the Feb 13 patch and it ruined it again for me. I don’t know why i stepped over from COD.. The game looks better but if you get kicked out of the server it’s no fun..

PLease fix..

fix that 3659 bla bla bla…

Have 2 pc’s & a Xbox in my household playing BF4 of their own origin accounts. How can we get around this error? I can play at times, then not at all

Had a great round, played for around 30 minuttes, and then this, jeez, and suggesting people to open port 80 is one of the dumbest things I’ve ever heard, unless you’re hosting a webserver, don’t touch that port.

EDIT Typos.

Whats up,For those who are using Huawei modems,all you have to do is go into your modem settings,select security and then deselect the Enable firewall setting.This worked for me without have to manually opening ports or all the stuff.PEACE…later

Well, nobody told me that cursing port 3659 UDP would get me a ban & thats all they can do, as always LOL.