D-Link DCS-6620G - HTTP 400 Bad Request
After the install of Silverlight - My D-Link DCS-6620G camera started returning HTTP 400 Bad Request errors.
After a bit of investigation, I found this:
http://silverlight.net/forums/p/7452/77779.aspx
Locating the key, HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Accepted Documents, I removed a couple of XML document type I figured that I would never use.
Everything now works fine.