Many modern NICs include offload features to reduce the load on a host system CPU.  These features occasionally cause problems with DECnet, TCP/IP, and System Communications Services (SCS) communications.  If one of the following problems is encountered, try turning off TCP related offloading under the Windows Configuration> Advance tab for the NIC assigned to Avanti, starting with TCP Connection Offloading.

•Unable to establish communications to the Avanti NIC.

•Communications with Avanti are unstable (time outs, packet loss)

•Cluster communications are unstable (SCS cluster time outs, packet loss)