So, today I was running an ASP app from localhost. It uses a 3rd party API called TweetInvi. It was authenticating and working 100% correctly until suddenly I started getting “The remote server returned an error: (401) Unauthorized.” when trying to authenticate. This seemed to coincide with me logging in and out of my Twitter account.
Any thoughts on what went wrong here? Is there anything special I need to do to make sure I can use the app from my local machine?