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ORA-28547 connection to server failed

240797bc-6f7a-4bbb-907b-610e8ad8bf82Apr 18 2018 — edited Apr 18 2018

Hi, we are getting the following error when trying to connect to a DB instance on Oracle 12 g on Vmware.

ora-error.jpg

This was working fine up until the latest Windows updates which came down last friday.

We have been able to replicate this by rolling back to a previous snapshot with no updates, the updates re-applied overnight and the again encountered the DB connection issues.

Has anyone experienced something similar? If so what updates did you exclude and what did you do to fix this?

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Locked on May 16 2018
Added on Apr 18 2018
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