Constant disconnects

[GuardHealer]

Totally a nightmare. My game keep getting disconnect because 90001 a lot. I tried others program and work fine but FFXIV. Hope they fix it.

[PeeweeHardwell]

Same problem here, game disconnect ever 2 hours or so, I play with my brother in the same network and we DO NOT disconnect at the same time, but we both have the same problem every 2 hours, Please fix this, it is very annoying.

[Novak_04]

It's stressful because you never know when it's going to happen -- as a crafter, this makes me nervous. I've disconnected with 100% quality and one -- ONE -- synth stroke away from completing the craft. It counted it as a failed synth and didn't refund the mats. This is a problem.... a big, big problem.

[Renali16]

It was acting up ever since Tuesday. I guess downloading LoL recently could cause it, but that's just absurd. Was literally leaving the game on at nights without any form of 90ks for the past few weeks. Now I can't keep it on for barely a half hour of actual gameplay.

[Einmimiria]

Thank you for the replies everyone.

The troubleshooting we can provide involves strengthening your home network. I'll list the troubleshooting here, however, if the issue stems outside of your home network, you are likely running into a routing issue along your way to the server. In that case, I'd suggest contacting your ISP regarding the matter.

The standard troubleshooting is as follows:

1) If you are connecting to your router using a wireless connection, try connecting using an Ethernet cable.

2) Try resetting your router by turning it off, then back on after a few minutes.

3) Make sure your anti-virus has the proper exceptions for Final Fantasy XIV. This includes the install folder and the locally-saved data folder (located My Documents > My Games > Final Fantasy XIV).

4) Check the following Port Ranges on your router/modem to ensure that they have been opened:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040
Your ISP can open these ports for you.

5) Try a clean boot. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

6) The game will use the Internet Explorer web browser to connect to the internet. Open Internet Explorer, then open the "Tools" setting, go to "Internet Options" and adjust the following settings:
- Under the "General" tab, please delete ALL browser history.
- Under the "Security" tab, please move the slider to the lowest possible settings or no higher than "Medium"
- Under the "Privacy" tab, click “Advanced” and select ‘Accept’ under both First Party and Third Party Cookies.
- Under the "Advanced" tab, please make sure that "Allow software to run or install even if signature is invalid" is CHECKED.
- Make sure that all SSL and TLS (EXCEPT SSL 3.0) are CHECKED. [SSL 3.0 should be UNCHECKED]
- Hit "Apply" to save the settings, and then "OK, to close the Internet Options menu.

Thank you for visiting the Final Fantasy XIV Technical Support Forums.

[PeeweeHardwell]

Thank you for the replies everyone.

The troubleshooting we can provide involves strengthening your home network. I'll list the troubleshooting here, however, if the issue stems outside of your home network, you are likely running into a routing issue along your way to the server. In that case, I'd suggest contacting your ISP regarding the matter.

The standard troubleshooting is as follows:

1) If you are connecting to your router using a wireless connection, try connecting using an Ethernet cable.

2) Try resetting your router by turning it off, then back on after a few minutes.

3) Make sure your anti-virus has the proper exceptions for Final Fantasy XIV. This includes the install folder and the locally-saved data folder (located My Documents > My Games > Final Fantasy XIV).

4) Check the following Port Ranges on your router/modem to ensure that they have been opened:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040
Your ISP can open these ports for you.

5) Try a clean boot. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

6) The game will use the Internet Explorer web browser to connect to the internet. Open Internet Explorer, then open the "Tools" setting, go to "Internet Options" and adjust the following settings:
- Under the "General" tab, please delete ALL browser history.
- Under the "Security" tab, please move the slider to the lowest possible settings or no higher than "Medium"
- Under the "Privacy" tab, click “Advanced” and select ‘Accept’ under both First Party and Third Party Cookies.
- Under the "Advanced" tab, please make sure that "Allow software to run or install even if signature is invalid" is CHECKED.
- Make sure that all SSL and TLS (EXCEPT SSL 3.0) are CHECKED. [SSL 3.0 should be UNCHECKED]
- Hit "Apply" to save the settings, and then "OK, to close the Internet Options menu.

Thank you for visiting the Final Fantasy XIV Technical Support Forums.

Ok, i am playing with my brother by my side in another computer in the same network but only one of us get disconnected at the 2 hours mark while the other can keep playing until his 2 hours mark run out, then he get disconnect too, i mean if there was a problem in our end where we lost internet we both should get disconnected at the same time due to we both are playing in the same network, ISP in a wired network connection. I think someone should look into it because it only happen on FFXIV. I ping your servers and i have zero package lost to your IP address or to google DNS or web site.

[Novak_04]

Thank you for the replies everyone.

The troubleshooting we can provide involves strengthening your home network. I'll list the troubleshooting here, however, if the issue stems outside of your home network, you are likely running into a routing issue along your way to the server. In that case, I'd suggest contacting your ISP regarding the matter.

The standard troubleshooting is as follows:

1) If you are connecting to your router using a wireless connection, try connecting using an Ethernet cable.

2) Try resetting your router by turning it off, then back on after a few minutes.

3) Make sure your anti-virus has the proper exceptions for Final Fantasy XIV. This includes the install folder and the locally-saved data folder (located My Documents > My Games > Final Fantasy XIV).

4) Check the following Port Ranges on your router/modem to ensure that they have been opened:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040
Your ISP can open these ports for you.

5) Try a clean boot. Simply open the task manager and select the 'Start up' tab. Disable everything here and restart the PC. This will make sure that no background processes are interfering with the game.

6) The game will use the Internet Explorer web browser to connect to the internet. Open Internet Explorer, then open the "Tools" setting, go to "Internet Options" and adjust the following settings:
- Under the "General" tab, please delete ALL browser history.
- Under the "Security" tab, please move the slider to the lowest possible settings or no higher than "Medium"
- Under the "Privacy" tab, click “Advanced” and select ‘Accept’ under both First Party and Third Party Cookies.
- Under the "Advanced" tab, please make sure that "Allow software to run or install even if signature is invalid" is CHECKED.
- Make sure that all SSL and TLS (EXCEPT SSL 3.0) are CHECKED. [SSL 3.0 should be UNCHECKED]
- Hit "Apply" to save the settings, and then "OK, to close the Internet Options menu.

Thank you for visiting the Final Fantasy XIV Technical Support Forums.

Of course it's our ISP's fault... there's NOOOOOOOOO possible way it has anything to do with the patch, despite it being an issue that's occurred since the patch. It's just one huge coincidence that all of us are having ISP issues since 5.2 dropped. /s

It's like you guys don't even listen to what we're saying.... you see the word disconnect and flip to that section in your script and start copy/pasting. If these were issues that we've been experiencing for months, I could see the validity in your suggestions, but these are things that have been happening since a specific event in the game. If you were to make a master thread in GD asking if anyone else has been experiencing these issues, I guarantee you'd have a ton more people come forward. I wondered why there were so few people posting about this despite hearing and seeing so many getting disconnected, but now I think I have my answer: nothing will actually get done. Suddenly it's our ISP's fault. Suddenly the wireless connection that we've been using for years is faulty. Suddenly it's [insert scapegoat here].

[Packetdancer]

Of course it's our ISP's fault... there's NOOOOOOOOO possible way it has anything to do with the patch, despite it being an issue that's occurred since the patch. It's just one huge coincidence that all of us are having ISP issues since 5.2 dropped. /s

To be fair to SquareEnix, Comcast is demonstrably having an absurd amount of weird problems at the boundary with NTT (on which FFXIV is hosted) right now and has been since about February 20th; the fact that the equipment there apparently had the networking equivalent of a stroke two days after the 5.2 patch is really unfortunate timing, but not necessarily connected to the patch itself. And if you're on Comcast—or a smaller provider that uses Comcast as their backbone connection—I would honestly say the chances that any sort of connectivity weirdness are related to that whole situation are a non-zero quantity.

I mean, my FC-mates who are on Comcast have had a litany of different connectivity issues to FFXIV since 5.2, and what they are seems to vary; the only consistency is that all of the affected on any given night are on Comcast, and literally everyone else in the FC is fine. I don't know whether it's on Comcast's side or NTT's side, but they've had lag/latency, dropped packets and disconnections, streams that just get arbitrarily closed after a certain time because the boundary router seems to think they're no longer needed, etc...

That said, regardless of whether it's the Comcast/NTT boundary weirdness that's affecting you or not, I can totally get that them using the same set of questions to try to get folks back online feels frustrating. But I doubt the tech support folks are finding it any more fun to be able to not provide an answer; based on watching friends who've worked tech support jobs, I would put decent odds on the guess that they don't even have the authority to try to escalate a problem to a dev to look at unless they can tick off a box somewhere that says they've offered all the stock solutions, and that the customer confirmed trying them with no success.

Edit to add: FWIW, if this is the case for you, using a gaming-focused performance VPN—which will route your traffic around the affected boundary—should actually clear the issue up. That's what several friends have done to get around the situation. If it does fix things, the issue is with your ISP (or rather, the route between your ISP and FFXIV's servers); if it does not, then the issue is on the local network (or in FFXIV's network code).

[PeeweeHardwell]

I found the solution for the disconnection every 2 hours, but maybe could be applied to others randoms disconnections with error 90k.
After a lot of test i identified the problem in my end, my router after 2H and 5 minutes had a DHCP release, causing some package lost and the disconnection with the error 90K.
I own 2 router Netgear R6900P and R7000P both router have the same issue, after read in their forum seams to be more people are experiencing the same behavior, with those two router and others due to the firmware is basically the same for must of them.
My solution, log on into the router menu(192.168.x.x) and activate QoS(Quality of Service) this will stop the disconnection every X amount of time, but depending on your connection this can have an impact in your connection. Any way is a good way to isolate yours constant disconnection.
Just activate QoS, apply the change, log off, reboot your router and modem and you should be online again. My advice not to mess with other options in the QoS like prioritize some connection and stuff like that.
I bought the Asus RT-AC68U and i did not have to do nothing, it worked great with no disconnection or other issues.
If anyone need more explanation just ask.