On number of occasions we may need to Clear SharePoint Configuration Cache, also known as SharePoint Timer Cache. Let us consider one scenario; we have a SharePoint Farm with high availability (Streamlined topology with 4 Front End Web Servers), we want to change or reset Farm Passphrase. I changed the Passphrase successfully and now want to rejoin another Front End Webserver to the Farm which was disconnected earlier before resetting the Farm Passphrase. Note : To know how to change the SharePoint Passphrase, please visit my article here . I tried to run the Configuration Wizard on the Front End Webserver for rejoining it to the Farm and after entering the new Passphrase it stops with error "Could not connect to the Configuration Database, make sure the Passphrase it correct". To resolve this issue we need to clear the Configuration / Timer Cache from all the Servers on the SharePoint Farm, because the Farm is still using the Configuration Cache and we don