Unable to create new Web application

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When I try to create a new Web application, it just shows message as ' This should ' NT take too long '. Then, after a while it'll show message as Request Timed out.

Sometimes it would show ' this page could not being found ' web page.

Sometimes it would show ' this page could not being found ' web page, however, when I come back to manage web Apps screen, I can See this web app is created.

What does think is reason for these 3 cases above?

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"Workaround"

I had the same problem just a couple of days ago. Do you run many web-applications in your farm? From the blogpost:

This is usually because you either has too many WEB applications in your SharePoint Server, or because your SharePoint Se RVer is slow! As part of the WEB application creation process, SharePoint resets IIS. By Default, the application pool is allows for a seconds for all of the connections to close before it down by force. If You got the this message it's because seconds wasn ' t enough and we need to increase that limit.

I found the solution here, and it worked perfectly. Go into IIS and, the property "Shutdown time limit" for the central admin application pool from seconds.

Internet Explorer cannot display the webpage when creating new Web application in SharePoint 2013

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Unable to create new Web application