Oracle Database Discussions

Not sure if this is the appropriate forum for this

We work in a managed environment. In the past week the domain has changed from Manitoba to ME. Yesterday I tried to connect to my local personal Oracle database 9iv2 with SQL*Plus and got an ORA-(TNS)-12631 USERNAME RETRIEVAL FAILED error. However I can connect with iSQL and Oracle Forms. Go figure? Everything was working well on Friday. Our systems person cannot find anything in the logs to indicate other changes that might have been made to our environment.

I've changed all occurrences of manitoba to me in the c:\oracle\ora92\network\admin\tnsnames.ora, listner.ora and snmp_rw.ora files as well as any others of the same name in other directories (just in case).

This has not solved the problem. Can anyone suggest what else might need fixing/editing???? Registry??

I activated the logs and traces but don't understand them well enought to find clues to the problem.

At the same time, we also experienced problems with our oracle servers, but they are now back on line. I was told that the listners stopped working.

I still cannot connect to my personal oracle, so any help/suggestions would be very much appreciated

Thank you

glenn