I am running an ASP.NET 2.0 application on IIS 6, Windows Server 2003 Web Edition. By no pattern that I can discern, about one in 300-500 individual requests results in the IIS error "Invalid Request (Bad Verb)".
I cannot figure out what is causing this error - my application does not manipulate the HTTP headers, so it could not be a programming bug. Also, on a separate physical server, another copy of the same site is running that is, for all practical purposes, the same version of the code, and it has not once encountered this error. As far as I can determine, the Web Site configurations of the two are identical. This behavior has persisted across over 100 builds and code changes without any discernable improvement or degredation.
Any help getting me even pointed in the right direction would be most appreciated.