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Toad for Oracle 12.8 , problems after installation

Platform: Windows 7 Professional -- 32 Bit

Oracle client 32 Bit -- C:\oracle\instantclient_12_1

The server could not be reached. 10013: [10013] Access denied

TNSping is ok

pinging through command prompt is okay,

Items Checked

TNS_ADMIN environment variable is defined as "C:\oracle\instantclient_12_1"

"C:\oracle\instantclient_12_1\tnsnames.ora" was located

The following connect descriptor was found for PROD1 in the tnsnames.ora file

(Host =
(Port = 1521)

"C:\oracle\instantclient_12_1\sqlnet.ora" was located

NAMES.DIRECTORY_PATH specifies TNSNAMES in the sqlnet.ora file

Steps to Take
Try to ping using the Ping button on the toolbar
Try to TNSPing PROD1 using the TNS Ping button on the toolbar