I was installing ArcGIS for Server 10.2.2 (on Win 2008 R2) from scratch on a single machine. The site setup went smoothly but when I got to installing Web Adaptor I realized I need to change the computer name. Based on the information in common problems and solutions (ArcGIS Help (10.2, 10.2.1, and 10.2.2) ) I thought it was save to do so and that arcgis will pick up the change and configure the site properly.
Now the server is no longer available on http://localhost:6080/arcgis/manager and none of the other ArcGIS urls work (IE says "This page can't be displayed"). Task manager indicates ArcGIS Server process is not running but I cannot start it.
What should I do to recover the site?
Why did it not work (does the safe renaming apply only to computers registered in the site and not the site itself?).
Is it a good idea to try change some files in the config store?
I found some forum posts that described similar situations but for older versions.
Many thanks for any advice.