SharePoint site Keep Asking for password After IISRESET

Question

Even Many Question Regarding SharePoint Prompting for password again and again but,Even I can't find Exact solution

When IIS reset to cache clear, site working fine ,but after some time same prompting issue occurs

My Configuration:

--> site added in trusted site

--> no ULS logs for that particular login fail

--> no Event Error

Can you check the identity of application pool of your central admin and your custom web app? Change it to a credentials that should not expire. Try to recycle the application pool and perform anotehr iisreset then try to access the site. Also add this account into the user policy of web appln. — SaMolPP, Dec 19 '15 at 12:10
any special rights need to have which user configure for that pool? @SaMolPP — Amit Koyani, Dec 19 '15 at 12:25
Are there any requests to a different website? e.g. an IFRAME or you gather data frome elsewhere? — Daniel, Dec 20 '15 at 7:28
No , that site not contain any kind of reference,But in that server Using VS working on Web site development, is this affected? @Daniel — Amit Koyani, Dec 21 '15 at 4:37

Amit Koyani · Accepted Answer · 2016-02-22 05:53:31Z

I saw my CPU usage there is lot of memory consume by the search service application, some of below cases are helpful to this situation

If you have not using search functionality then disable the search service application
search configure in different server
Search crawl schedule in off hour from central admin,in this case you can schedule your crawl in night time where CPU is free

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