Authentication required, Browser session mismatch.

Question

I am getting error message: ' Authentication required, Browser session mismatch.' anytime I try to do something in the administration section. Also when trying to pull out reports. 
 It is kicking me out and I have to sign in again but cannot actually Administrate 
 We recently upgraded to the latest version of Sage CRM and apparently I can do what I need to be done when going to the non-https version of Sage CRM. The SSL Certificate works fine and it's setup seems ok and I don't know where to look now. 
 Thank you for helping me!

dskantor · Answer

For 7.3 Version and higher and using IE 11?. 
 
 Navigate to Sage CRM logon page, 
 Click on the Settings Icon on the top right corner 
 Click on Compatibility View Setting 
 Uncheck Display Intranet Sites in Compatibility View 
 Remove CRM server host name from the list. 
 Click Close. 
 
 See Knowledge Base 28595 for IE settings and Knowledge Base 79063 to clear the browser cache and cookies

TomasBlomqvist · Answer

This issue is resolved in Sage CRM 2018 R2

Sage CRM

Authentication required, Browser session mismatch.

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