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ORA-12571: TNS:packet writer failure

Posted on 2006-06-12
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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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Question by:pschar
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by:MohanKNair
ID: 16887167
Edit sqlnet.ora file with
SQLNET.AUTHENTICATION_SERVICES= (NONE)
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by:MohanKNair
ID: 16887184
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by:pschar
ID: 16887286
thats already the case, still get the error
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by:MohanKNair
ID: 16891514
Are you able to connect using sql*plus using the TNS alias?
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by:MohanKNair
ID: 16891555
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by:pschar
ID: 16893623
no unable to connect via sql+
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Author Comment

by:pschar
ID: 16893678
correction - i am able to login with sql+
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MohanKNair earned 500 total points
ID: 16893831
The problem can be due to loss of Network connectivity in between.
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by:pschar
ID: 16893949
let me guess . . .talk to my sys admin?
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Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

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