Error in Web Interface: "The page was not displayed because the request entity is too large." (107295)

Error message box pops up sporadically in ActiveRoles Server Web Interface when the page is left idle for some time:

The page was not displayed because the request entity is too large.

1. On the computer running ActiveRoles Server Web Interface start Windows command prompt
2. Using cd command, navigate to the following folder:
   
   C:\Windows\system32\inetsrv
   
3. Run the following command:
   
   appcmd set config "https://URL" /section:system.webserver/serverruntime /uploadreadaheadsize:1048576 /commit:apphost
   
   Note: in the command above, replace the URL substring with the actual URL of the ActiveRoles web site with the issue.