VisualSVN Server: Can't add files; While changing files and adding new folders (including new files) is fine

Question

Installed VisualSVN Server (updated to newest version today) on one of our servers and everything worked fine.

Our IT department did an security check and found some weak ciphers, not secure port etc; I fixed these problems and the server got a new IP address and moved to live system.

• Since then I can't add new files to SVN anymore (x)
• Changing existing files is fine (/)
• Adding new folders is fine (/)
• If new folders include files, adding these files is fine (/)
• Just adding a new file to an existing folder will generate SVN error (x)

SVN error:

Commit failed (details follow):
Changing file 'D:\Test\Test.txt' is forbidden by the server
Access to '/svn/Test/Test.txt' forbidden

Thanks for your help!

---

Things I tried so far:

• Created a new folder and used it as Repositories Root
• Created a new Repository with "All Subversion user have Read / Write access" inside
• Changed "Log On" user to a local Administrator (was "Network Service" user) for "VisualSVN Server" and "VisualSVN Background Job Service" Service.
• Checked access rights to Repository folder in file System, both (Network Service and new local Administrator) have Full control (read/write/modify/list/...)
• Found a workaround to add new files by adding them in a new folder and move them afterwards
• Created a new local user, gave him rights to all folder/files related to VisualSVN Server + added the user as LogOn for VisualSVN Server Services
• Uninstall VisualSVN Server, reboot, install VisualSVN Server, reboot

Answer 1

For some reason httpd-custom.conf wasn't empty...

RewriteEngine On
RewriteCond %{REQUEST_METHOD} ^(HEAD)
RewriteRule .*$ - [F,L]

...which caused the problem. I have no clue what bastard put it in there - will track that later. Anyway - working fine now!