Over the last fortnight or so I've been getting this message fairly frequently when drafting a blog post.
This has happened when I've been in different parts of the country, working on different machines with a range of different browsers. On each occasion there has never been an obvious issue with the internet connection. On some days it was occurring every five minutes or so. Fortunately I have never lost any significant amount of input as yet, but it's pretty frustrating to essentially be reloading the page every few minutes.
It has never been a problem until fairly recently. Has anyone else been experiencing anything similar?