I would like to make use of SQL Server notifications to capture insert events at my database within a winforms app. I am attempting to use the SQLDependency object. The MSDN art
While I was working in the implementation of query notification, I got the exact problem. I checked all configurations, code pieces, and even TCP settings, but nothing helped. Then, I figured out the following query to run on database and it solved my problem. Maybe you can try it.
ALTER AUTHORIZATION ON DATABASE::[Your DB] TO sa;