Hi, Make sure you are using the java.net.preferIPv4Stack property on the server side as well.
Check your firewall config, to make sure that all listed ports are open. The issue is w/the communication SPI which, by default is using 47100 and up port range see: https://ignite.apache.org/docs/latest/clustering/network-configuration#communication Error in question: Caused by: class org.apache.ignite.IgniteCheckedException: No session found at org.apache.ignite.spi.communication.tcp.TcpCommunicationSpi.createNioSession(TcpCommunicationSpi.java:3986) -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
