Below is the error msg when dev team tried to connect to the database server through sql-developer/Toad.
The Procedure entry point snlinAddrLocalhost could not be located in the dynamic link library oran|10.dll
Possible Reasons: Environment variables are not set properly or pointing to some other oracle home.TNS_ADMIN must be set if tnsping.exe is not able to load.
Solution: Set the correct environment variables as show below:
Restart the machine.