error [11003] starting 10/3

Hello, I have submitted a ticket to square enix support but after no updates that im aware of, i have been unable to get the launcher to update and when it opens, it gives me a 11003 error and says that it cannot download the patch files. i have tried most of the fixes that were suggested online and others but have not had any luck so far. yesterday when trying to login i was having various issues and eventually redownloaded the game through steam but that didn't help the issue i was having yesterday. If anyone has any thoughts on how to fix this, I'd like some help as this whole support experience has felt extremely frustrating so far.

After fiddling with various fixes for a while it seems that having all 3 of the programs in the boot folder set to run as administrator and in windows 8 compatibility helped to get this back to a running state, will update if i have any more issues.

Good afternoon! Thank you for posting in the Final Fantasy XIV Technical Support Forums.

We apologize for any inconvenience experienced while trying to play Final Fantasy XIV. We understand that issue may be temporarily resolved.

However, we’d like to confirm if you need further support at this time. As the error you provided is associated with connection, we may offer the following troubleshooting:

Open the control panel of the PC and go to ‘Network and Internet’. Once there select ‘Internet Options’

- 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.
- Right-Click on the FFXIV launcher icon and select "Properties"
- Hit "Apply", then "OK" to save the changes.

Please RESTART your PC now. Once your PC has been restarted, Right-Click the FFXIV launcher icon once more and select "Run as Administrator"
*Make sure your fire wall or antivirus program is not interfering with the game

Lastly, check to see if the following port ranges are opened on your router. You can contact your ISP and request assistance with confirming/opening the ports:

▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040

Afterwards, try disabling background applications and do a clean boot by opening the task manager and selecting the “Start up” tab. Disable everything and then restart the PC.


We hope we can be of assistance in helping you enjoy the exciting world of Final Fantasy XIV!

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