One of my Web Application in SharePoint 2013 shows error
“HTTP Error 503. The service is unavailable”
I checked in IIS Application pool and Start the respective service but the error still persist
Thanks In Advance
Does the application pool for that web application appear to be stopped when you go into IIS? Does it stop right after you restart the pool (refresh if needed)? I’ve seen this issue occur when a web.config for the web application has an error within it (fat fingered issues). Has anything changed with this web application recently?
Ashraf, was this webapp accessible before? Or, is it a newly created webapp?
Are you still experiencing the problem?