I am hoping someone can help me with this error. Our Oracle team and Network team says they see nothing on their side causing an issue.

Direction : SourceToBroker
Error Category : ERROR
Transaction Description : Exception while attempting to retrieve and publish the Sales Order Notification records from F55UI520 Transaction Key Fields :
The following errors were reported:
ErrorID : IWM100_CAS-18014 [ART.117.4002] Adapter Runtime (Adapter Service): Unable to invoke adapter service EAI_AdapterServices.JDE:F55UI520_selectNewRecordsByProcessFlagEDSP.
[ADA.1.316] Cannot execute the SQL statement “SELECT t1.SYEDBT,t1.SYDOCO,t1.SYDCTO,t1.SYZ55DCTR,t1.SYKCOO,t1.SYEDSP,t1.SYEDDT FROM PRODDTA.F55UI520 t1 WHERE (t1.SYEDSP = ?) ORDER BY 1 ASC”. "
(17002) Io exception: Connection reset"
Io exception: Connection reset

Possibly a stale connection in the adapter connection pool. Have you reset the connection using IS Admin? What are your connection settings, particularly min pool size? In production, you want that to be 0. How does the connection timeout value on the IS side compare to the DB side settings?

Check Advantage to see if this is an issue that has been encountered before. The best bet to search for is the error code from Oracle-17002.