Before, I managed to access the URL
http://spn_v1:15778. But after my Active Directory restarted, I cannot access this URL. I got error
HTTP/1.1 200 OK Server: Microsoft-IIS/9.8
Date: Wed, 04 Feb 2015 08:42:13 GMT
I open the log and I found this message.
For info, when I created a new Web Application with different URL and port, I managed to access the application without any error.
I tried to use the available solution here, but still didn't work.
I have tried to detach the content database for that web application and attach again. But still didn't work.