Patch is up (launcher & client)

[poipoy]

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FFXIV Launcher Error
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Unable to complete version check.
[30410][30607][20457][409]
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OK
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still no fixed

Try get the updated working boot folder from friends or someone here, that will "fix" it until next launcher update. I'm in the same situation, since the previous patch, everytime there's launcher update, I'll get that error after pressing log in >.<
I don't have this issue before and really dunno what I did to reproduce this error everytime now when have update on launcher.

Edit: I've got a tip from FC friend telling me to right-click on the file->properties in the boot folder, and click the "Unblock" button if it's there, repeat this for all files in the boot folder. (The button will only be shown if the file was from someone's else computer) Tested and didn't work for me