Hi,
Actually I'm facing some issue at Workflow level. Its List level SPD workflow and getting stuks or suspends at particular stage.
Once I googled it I found few forum links they are suggesting chnage the "Load User Profile" setting at IIS Level.
Steps:
In InetMgr, go to advanced settings for Security Token Service Application Pool and change "Load User Profile" to true. Recycleapplication poo.
Here I want to know the impact of this setting.
https://ramirezmery.wordpress.com/2015/04/01/sharepoint-2013-workflow-error-http-unauthorized-to-httpsitename_vti_binclient-svcweblistsgetbyid/
http://blog.houratious.com/2014/06/sharepoint-2013-workflow-server-was.html
Thanks,
Siddheshwar Kohale