The client of a web app called me at 7am, irate and screaming at me that the web app is down. I logged in with no issue and checked the logs to find no outages. I checked the site to make sure the DNS was up. It was. Everything seemed fine, so I called the client for clarification.
Client: The app is still down! What are you doing?
Me: Everything appears to be working fine. Can you email me a screen shot of what you are seeing?
Client: No, my email won’t work, my wifi is out.
Me: I think I see the problem now.