Failed to get document content data. System.ComponentModel.Win32Exception (0x80004005): Cannot complete this function

I have SharePoint server 2013, and today i applied the January Cumulative update from http://support.microsoft.com/KB/2920804.

then i run the product configuration wizard which completed successfully.

but now i am checking SharePoint  logs and i see that there are many exceptions with the following details:-

01/29/2016 17:29:08.83 	w3wp.exe (0x1850)                       	0x251C	SharePoint Foundation         	Database                      	ab1a9	High    	Failed to get document content data. System.ComponentModel.Win32Exception (0x80004005): Cannot complete this function     at Microsoft.SharePoint.SPSqlClient.GetDocumentContentRow(Int32 rowOrd, Object ospFileStmMgr, SPDocumentBindRequest& dbreq, SPDocumentBindResults& dbres)	b4095a9d-449e-90cc-8f8b-b9ea4562db

So can anyone advice on this? now i check previous logs , before applying today's CU, and could not find such an error. so can anyone adivce how to fix this error? and it is related to January 2016 CU ?

Thanks