I am upgrading the clients to v3 as first step to converting to v3.  The
server is MVS v2.1.0.12 and the client is v3.1.0.6.  The client
communicates readily with the server, but when I intiate a server prompted
schedule activity, the server fails to connect to the client and the
schedule entry is marked as missed.  I have checked the TCP ports and
everything appears to be in order.  I ran a test against a v2 client and
the prompting works as usual.

My question:
Is there a minimum release level of the v2 MVS server code that will
support a v3 client using schedule prompting?

Any other suggestions on things to check?