Unable to patch update files

[Huskirby]

Hi, everyone.

Yesterday I was working on my lancer and, while in "Lance of Destiny" lvl 20 Quest, I couldn't get into duty. I saw that it was because of corrupt files in my installation so I proceeded to fully uninstall everything. Since that I've tried installing it like 5 times but when it comes to updating 2015.02.10.0000.0001 waiting time increases until a message pops:

Unable to update patch files [11006] [20819] [20831] [19900] [1117]

I have all the .exe run as administrator, have the firewall deactivated and the executables added in exception list... But I still get the same message. It's getting quite annoying. I have the message both in my Steam version and in the independent game version for PC.