This healthcheck is popping on only one of our many systems and I am not sure where the DNR Parm that is causing it is.
Netmaster is using either SOLVE or IBM DNR for the name resolution when the socket is activated.
If the DNR is set to SOLVE then error NMH0117E will occur to remind the following:
"The next release of the NetMaster suite of products (release 12.2) will remove the SOLVE DNR. Starting with the 12.2 release, the IBM z/OS Communications Server DNR will always be used to perform domain name resolution. You should migrate to the IBM z/OS Communications Server DNR prior to installing the NetMaster release 12.2 products."
Change DNR from Solve to IBM in /PARM $NM SOCKET group
ss SOCKETS - TCP/IP Sockets Interface ssssssssssssssssssssssssssssssssssssssssN
e Domain Name Resolution: e
e Use DNR Provided By ........ IBM (SOLVE or IBM) e
The health checker can be stopped through PPREF='XOPT=(NOHC)' parameter in RUNSYSIN.