Oracle Solution for Error ora-06131

ORA-06131: NETTCP: user access denied

What triggered the Error:

The host's SQL*Net TCP/IP server rejected this connection request because the client user(name) does not have access privilege - as determined by the contents of the Username Mapping Table (UMT), a component of the host's CONFIG.ORA.

What should we do to fix it:

To grant access, add appropriate entry to the host's UMT.