Subversion fails (propfind makes 400 bad request)

Hi, using mt 2.9.18, hotspot, ip-proxy and web-proxy it seems that i cannot use subversion to download things through http.

I get this error from proxy:

svn: requerimiento PROPFIND falló en '/code/tools/wispy'
svn: PROPFIND de '/code/tools/wispy': 400 Bad Request (http://svn.kismetwireless.net)

When i disable ip-proxy and set only web-proxy in transparent mode i get this:

svn: requerimiento REPORT falló en '/code/!svn/vcc/default'
svn: REPORT de '/code/!svn/vcc/default': 400 Bad Request (http://svn.kismetwireless.net)

What should i do? Thanks