The maximum unresponsive ping time default to 90 seconds in IIS, which causes following error message during debugging.
The web server process that was being debugged has been terminated by Internet Information Services (IIS). This can be avoided by configuring Application Pool ping setting in IIS. See help for further details.
This can be changed in IIS (Application Pools). Go to IIS, see which Application pool ur website is using. Go to advanced settings of the selected application pool.
Increase the time for Ping Maximum Response Time here or disable the “Ping Enabled” by making it false.