Web Service access + internal traffic + 407 Proxy Authentication Required

Fri, 02 Mar 2012 14:35:11 +0000

This had me stumped for a while. I was developing a SharePoint-based client to consume a simple web service. I started by writing a console app version of the code before deploying to SharePoint. Fairly straight-forward - added a web reference to my VS2010 project, and used

MyWebService srv = new MyWebService();
srv.DoSomething();

Early on in the project, I didn’t give much to the fact that when calling the method on the web service, I was given a 407 Proxy Authentication Error. I just setup a simple proxy for it:

SSRS error: Operation is not valid due to the current state of the object

Fri, 10 Feb 2012 12:27:50 +0000

If you’re using SSRS in SharePoint integrated mode, you may come across this error when using report parameters that have a high number of items in them. A recent security bulletin highlighted some issues and vulnerabilities in ASP.net, and a patch was released to cover some of the items. One of these was the maximum number of items you can have in a collection. If you exceed the limit, then you’ll likely get an error like:

Iis on Matt Thornton

Web Service access + internal traffic + 407 Proxy Authentication Required

SSRS error: Operation is not valid due to the current state of the object