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3832658 - Reconnection fails with "Connection timed out" error to connectivity endpoints (IPv6) in the SAP Cloud Connector

Symptom

  • SAP Cloud Connector reconnect not working for a subaccount looking for IPv6 IP 
  • Error in SCC logs scc_core.trc:
    "#ERROR#com.sap.scc.rt#https-jsse-nio2-8443-exec-x#          #Tunnel account:///subaccount id/Location ID connect failed
    io.netty.channel.ConnectTimeoutException: connection timed out after 30000 ms: connectivitynotification.cf.eu10.hana.ondemand.com/2a05:d014:ca2:3702:0:0:0:17:443    "

**Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.


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Environment

  • SAP Cloud Connector release indepedent.

Product

CONNECTOR FRAMEWORK all versions ; SAP Connectivity service all versions

Keywords

cloud connector, reconnection failure, restart, connecttimeoutexception, io.netty, connectivitynotification, connectivitytunnel, ipv6, ipv4, preferipv4stack, java.net.preferIPv4Stack, firewall, allow list, egress, timeout, eu, region, , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Problem

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