Product / patch installation or server upgrade required

Question

Two environments both are having the same issue. Some basic updates were applied but nothing out of the ordinary. Now I'm getting two errors that I can't resolve.

Product / patch installation or server upgrade required.

One or more servers is not responding.

Warning: The farm servers do not currently have the same product and patch level as each other. This page only shows the database status as related to the product and patch level for the server that served this page, and may not be correct for other farm servers until they have the same set of required products and patches installed.

1. psconfig won't run because it says service pack 1 is missing from one server when it's not. It has been installed on all servers and if I try to install it again it says there is nothing to be updated.
2. all servers show there are no available updates.

It's the strangest issue and I really don't want to rebuild the farm.

Any ideas?

Answer 1

Couple of things you can do.

1. Run the Get-SpProduct -Local after that run the Config wizard. I would use this psconfig -cmd upgrade -inplace b2b -force
2. Clear the Config Cache on All server in Farm then run the psconfig wizard.