In this post, you’ll learn more about the Oracle ErrorORA-06143: NETTCP: maximum connections exceeded with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-06143: NETTCP: maximum connections exceeded
Reason for the Error ORA-06143: NETTCP: maximum connections exceeded
The connect failed because the maximum conncurrent connections supported by the host’s SQL*Net TCP/IP server has already been reached.
How to fix the Error ORA-06143: NETTCP: maximum connections exceeded ?
You can fix this error in Oracle by following the below steps
Wait for a short period and re-try.