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ORA-12571: TNS:packet writer failure

pschar asked
Last Modified: 2013-12-12
I am using TOAD 8.6.1 to connect to an oracle database.  I have already done a tnsping and everything came back ok.  But when i try to connect to this particular schema i get 'ORA-12571: TNS:packet writer failure' , when i hit ok, it allows me to query the database but not use the schema browser (to see functions, procedures, etc).  I have verified my TNSNAME.ORA file is ok (verified by the tnsping).  Any ideas why i may be getting this or how it can be fixed?
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