Not sure if you were referring to this ‘John’, but. A few things to try.
I noticed that EKN does NOT “remember me” when I log in, either entering from a browser (Chrome, Edge or Explore) or from the daily email notification. You can read/browse without being logged in, but you can’t post or reply.
Try clearing Cache on the browser you are using. Open EKN. By clearing cache, you should be logged out. If not log out and then log back in.