Quote Originally Posted by starzen View Post
thats interesting
"Interesting" is not exactly how I am calling this right now... ;-)

Quote Originally Posted by starzen View Post
i would run fiddler to see which exact calls give you the error
Afraid so.
I've already tried to create an "empty" login view in which nothing happens; same error.
So it must be something in the WebApp myself.

It has got something to do with the Handler Mappings (in general). My development computer has a lot more mappings.
So I also tried to copy those settings from the applicationHost.config to the webserver (I read that this solved it for someone), but that didn't help either.

No clue so far. And too less knowledge about IIS to deal with this....