PORT FORWARDING

[worldofneil]

You don't need to forward any ports. That's only needed when something is trying to access a service on your computer and with FFXIV (and most games), you're running a client connecting to their server, not the other way round so if you actually forwarded any ports to your computer, you'd just be creating potential security risks, you certainly don't need to do that to run the game.

The WiFi is likely shutting down because possibly (am I mean no offence) the router isn't very good quality and doesn't handle the packets streaming through it (I've seen this first hand with cheap access points at my work which will crash when too much traffic goes through them). The other thing it might be is that your router has non-standard WiFi settings turned on (like "Turbo mode" to boost WiFi speed or other similar name dthings, but they aren't a standard thing and is specific to certain manufacturers) or it might be some sort of WiFi protection mode where it intentionally shuts down if if it detects possible security risks (DoS filters etc).

[KisaiTenshi]

You don't need to forward any ports. That's only needed when something is trying to access a service on your computer and with FFXIV (and most games), you're running a client connecting to their server, not the other way round so if you actually forwarded any ports to your computer, you'd just be creating potential security risks, you certainly don't need to do that to run the game.

The WiFi is likely shutting down because possibly (am I mean no offence) the router isn't very good quality and doesn't handle the packets streaming through it (I've seen this first hand with cheap access points at my work which will crash when too much traffic goes through them). The other thing it might be is that your router has non-standard WiFi settings turned on (like "Turbo mode" to boost WiFi speed or other similar name dthings, but they aren't a standard thing and is specific to certain manufacturers) or it might be some sort of WiFi protection mode where it intentionally shuts down if if it detects possible security risks (DoS filters etc).

Not entirely true. All communications are two-way communications. NAT can only be used once. Some carriers (particularly mobile phones) don't give real IPv4 addresses anymore, and rely on carrier-grade NAT. This means for you that if you have a router that also does NAT, your router can't determine where the packets coming from the network are supposed to go since it basically "rewrites" the destination.

http://na.finalfantasyxiv.com/lodest...06/blog/77559/
UDP
55296-55551
TCP
80, 8080, 443, 55296-55551

To clarify, this is what SE says, but this isn't what's being used.


The launcher needs to reach 124.150.157.126 and 124.150.157.117 (port 443 SSL)
The login/lobby needs to reach 124.150.157.158:54994 and the game uses port 54680 and 54681 while doing this
When you click on your server (Excalibur 199.91.189.42:55006) it opens two connections to it, using ports 54906 and 54907 on your system.

What you're supposed to do is let UPnP work, or use "trigger" ports , when the game connects to a specific IP or port number, the software firewall in the router is supposed to let connections 54994-55006 pass through.

What causes peoples routers to crash is that the outbound ports are being blocked, or the inbound traffic is being overwhelmed and doesn't know where to send it. Honestly if you have a poor quality router (some brands may use the same brand for their cheap vxWorks devices and their slightly more expensive, much more hackable Linux based ones) this doesn't surprise me. The firmware may come with stock settings that recognize things like WoW and Everquest, but never anything new.

[worldofneil]

http://na.finalfantasyxiv.com/lodest...06/blog/77559/
UDP
55296-55551
TCP
80, 8080, 443, 55296-55551

To clarify, this is what SE says, but this isn't what's being used.

That's not an official post, that's someones personal blog and it's VERY bad advice to do that they've said as they're saying to open nearly 300 ports to your computer that potentially may cause security issues if you have other services running on those ports.

FFXIV does not need any ports opened OR UPnP enabled (I know because I've connected from 2 locations, neither have UPnP or ports forwarded to the computer). If you find an official SE page saying you need to open ports so then please post a link, but I've never seen any such thing and from my own experience it isn't needed, as well as that fact the game isn't a server so nothing should be connecting to the local computers.

The FFXIV game is a client, it is creating all the connections to the SE server at which point the server can reply on those connections that the client created. Yes the router has to work out the NAT and reply to the correct internal computer, but since the connection is still open, that's easy. If your computer is unable to access SE servers on those ports that's an outgoing problem, not an incoming one. Incoming traffic needs ports to be opened, outgoing traffic needs unblocking on the router/firewall (or NAT adding) to allow it to work.