CWBLM0011 license error message WIN7 CA6.1 rc=6211

Out of hundreds of Windows 7 PC's all running the same install of CA6.1 SP SI35607 I have only two users that cannot signon. They get the error message "CWBLM0011 - an internal license has occurred rc=6211".

I have been researching this for days. A lot of the old hits seem to apply for releases before WIN7. For WIN7 this looked promising but did not fix the problem:


In order prevent Client Access from using IPv6, we had to add the following system (not user) environment variable:

Variable: CWB_IPC_NOIPV6SOCK Value: Y

The tech at the remote site did open the history log service viewer and sees the following chain of events:


* The PC connects to the IP address of the AS400 on port 449 (as-svrmap)

* The PC connects to the IP address of the AS400 on port 8476 (as-signon)

* Five occurrences of this message are then logged:
CWBCO1003 Sockets error, function select() returned 10038

All I can find out about this error is " Socket operation on non-socket " which doesn't help me.

Any thoughts on what else I can look at?

Scott Lindstrom