I am having the issue with NCM 7.4 and get the below error
A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has expired.) ---> System.ComponentModel.Win32Exception (0x80004005): The semaphore timeout period has expired
the SQL Db is a shared one and only Solarwinds APp is having issue . I have opened a case with Solar winds but they do not see any issue with APP.