I had to reinstall Windows 10 and, of course, SQL SERVER EXPRESS. I accepted all the default options when doing the reinstall. However, now when I try to run my applications develope4d in VS2019 I get a timeout error:
Message=Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
I am sure this is not a pool size problem because the single application that I run only open one connection at a time within a Using block.
I've read a lot of links about this but none seemed to apply. Please let me know how to approach this problem