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I/O Error: Unknown host specified 20.4

9a5eMay 11 2021

After upgrade on 20.4 I have problem with connection in Worksheet (using CONNECT)
I can connect using NETWORK alias in connect tree
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But when I try connect in worksheet using same NETWORK alias I got error

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Show TNS display NETWORK alias which I want to use
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This is not exception for that NETWORK alias but to all (there is more than 300 aliases)
Connection in tree are working but not in worksheet.
On command prompt using sqlplus I can connect to all NETWORK alias

Robert

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Added on May 11 2021
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